Document:

Exhibit 10.61

                           CHANGE IN CONTROL AGREEMENT

            AGREEMENT by and between Osteotech, Inc., a Delaware corporation
(the "Company"), and ____________ (the "Executive"), dated as of the ___ day of
_________________, 2002.

            The Board of Directors of the Company (the "Board") has determined
that it is in the best interests of the Company and its stockholders to assure
that the Company will have the continued dedication of the Executive,
notwithstanding the possibility, threat or occurrence of a Change in Control (as
defined in Section 1(e)) of the Company. The Board believes it is imperative to
diminish the distraction of the Executive by virtue of the personal
uncertainties and risks created by a pending or threatened Change in Control and
to encourage the Executive's full attention and dedication to the Company
currently and in the event of any threatened or pending Change in Control, and
to provide the Executive with compensation and benefits arrangements upon a
Change in Control which ensure that the compensation and benefits expectations
of the Executive will be satisfied and that such compensation and benefits are
competitive with those of other corporations. Therefore, in order to accomplish
these objectives, the Board has caused the Company to enter into this Agreement.

            NOW, THEREFORE, IT IS HEREBY AGREED AS FOLLOWS:

1. Certain Definitions.

            For purposes of this Agreement:

            (a) An "Affiliate" means any member of the same affiliated group
(within the meaning of Section 1504 of the Internal Revenue Code of 1986, as
amended (the "Code"),determined without regard to Section 1504(b) of the Code),
that includes the Company.

            (b) The Executive's "Base Period Compensation" is (i) the average
annual "Compensation" (as defined below) which was includible in his gross
income for his base period (i.e., his most recent five taxable years or such
lesser number of taxable years or portions thereof during which the Executive
performed services for the Company ending before the date of the Change in
Control); and (ii) if Executive's base period includes a short taxable year or
less than all of a taxable year, compensation for such short or incomplete
taxable year shall be annualized for the base period. (In annualizing
compensation, the frequency with which payments are expected to be made over an
annual period shall be taken into account. Thus, any amount of compensation for
such a short or incomplete taxable year that represents a payment that would not
be made more than once per year shall not be annualized). For purposes of this
definition, Executive's "Compensation" shall mean the sum of the Executive's
base salary plus any cash bonuses included in Executive's taxable compensation
for federal income tax purposes and reported to Executive and Internal Revenue
Service ("IRS"). Compensation shall not include any amount, other than base
salary and cash bonuses, such as the reporting of previously deferred
compensation or gain realized upon exercise of any non qualified stock options.

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            (c) The "Commencement Date" shall mean the first date during the
Change in Control Period (as defined in Section 1(d)) that a Change in Control
(as defined in Section 1(e)) occurs.

            (d) The "Change in Control Period" shall mean the period commencing
on the date hereof and ending on the third anniversary of the date hereof;
provided, however, that commencing on the first anniversary of the date hereof,
and on each successive annual anniversary of the date hereof (such date and each
annual anniversary thereof shall be hereinafter referred to as the "Renewal
Date"), the Change in Control Period shall be automatically extended so as to
terminate three years from such Renewal Date, unless at least sixty (60) days
prior to the Renewal Date the Company shall give notice to the Executive that
the Change in Control Period shall not be so extended.

            (e) "Change in Control" shall mean:

                  (i) a "Board Change" which, for purposes of this Agreement,
            shall have occurred if a majority of the seats (not counting vacant
            seats) on the Company's Board were to be occupied by individuals who
            were neither (A) nominated by a majority of the Incumbent Directors
            nor (B) appointed by directors so nominated. An "Incumbent Director"
            is a member of the Board who has been either (A) nominated by a
            majority of the directors of the Company then in office or (B)
            appointed by directors so nominated, but excluding, for this
            purpose, any such individual whose initial assumption of office
            occurs as a result of either an actual or threatened election
            contest or other actual or threatened solicitation of proxies or
            consents by or on behalf of a Person other than the Board; or

                  (ii) the acquisition by any individual, entity or group
            (within the meaning of Section 13(d)(3) or 14(d)(2) of the
            Securities Exchange Act of 1934, as amended (the "Exchange Act") (a
            "Person") of beneficial ownership (within the meaning of Rule 13d-3
            promulgated under the Exchange Act) of a majority of the then
            outstanding voting securities of the Company (the "Outstanding
            Company Voting Securities"); provided, however, that the following
            acquisitions shall not constitute a Change in Control: (A) any
            acquisition by the Company, or (B) any acquisition by any employee
            benefit plan (or related trust) sponsored or maintained by the
            Company or any corporation controlled by the Company, or (C) any
            public offering, private placement or other issuance by the Company
            of its voting securities; or

                  (iii) a merger or consolidation of the Company with another
            entity in which neither the Company nor a corporation that, prior to
            the merger or consolidation, was a subsidiary of the Company, shall
            be the surviving entity; or

                  (iv) a merger or consolidation of the Company following which
            (A) the Company or a corporation that, prior to the merger or
            consolidation, was a subsidiary of the Company shall be the
            surviving entity and (B) a majority of the Outstanding Company
            Voting Securities is owned by a Person or Persons who

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            were not beneficial owners (within the meaning of Section 13(d)(3)
            or 14(d)(2) of the Exchange Act) of a majority of the Outstanding
            Company Voting Securities immediately prior to such merger or
            consolidation; or

                  (v) a voluntary or involuntary liquidation of the Company; or

                  (vi) a sale or disposition by the Company of at least 80% of
            its assets in a single transaction or a series of transactions
            (other than a sale or disposition of assets to a subsidiary of the
            Company in a transaction not involving a Change in Control or a
            change in control of such subsidiary).

2. Employment Period.

            (a) Term of Employment. Commencing on the Commencement Date and
ending on the first anniversary of such date (the "Employment Period"), the
Executive hereby agrees to remain in the employ of the Company, and the Company
hereby agrees to continue the Executive in its employ, in accordance with, and
subject to, the terms and provisions of this Agreement, in the capacity of
[insert title], responsible for, among other things, [insert duties] of the
Company and, subject to the general supervision of the [insert Board or Chief
Executive Officer or other officer, as appropriate] such other duties and
responsibilities as are not inconsistent with the express terms of this
Agreement.

            (b) Position and Duties.

                  (i) During the Employment Period, (A) the Executive's position
            (including status, offices, titles and reporting requirements),
            authority, duties and responsibilities shall be in accordance with
            Section 2(a) hereof and (B) the Executive's services shall be
            performed at the location where the Executive was employed
            immediately preceding the Commencement Date or any office which is
            the headquarters of the Company and is less than fifteen (15) miles
            from such location.

                  (ii) During the Employment Period, and excluding any periods
            of vacation and sick leave to which the Executive is entitled, the
            Executive agrees to devote reasonable attention and time during
            normal business hours to the business and affairs of the Company
            and, to the extent necessary to discharge the responsibilities
            assigned to the Executive hereunder, to use the Executive's
            reasonable best efforts to perform faithfully and efficiently such
            responsibilities. During the Employment Period it shall not be a
            violation of this Agreement for the Executive to (A) serve on
            corporate, civic or charitable boards or committees, (B) deliver
            lectures, fulfill speaking engagements or teach at educational
            institutions, and (C) manage personal investments, so long as such
            activities do not interfere with the performance of the Executive's
            responsibilities as an employee of the Company in accordance with
            this Agreement.

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            (c) Compensation.

                  (i) Base Salary. During the Employment Period, the Executive
            shall receive an annual base salary ("Annual Base Salary") in an
            amount at least equal to that which he was receiving immediately
            prior to the Change in Control.

                  (ii) Incentive, Savings Retirement and Stock Option Plans.
            During the Employment Period, the Executive shall be entitled to
            participate in all incentive, savings, retirement and stock option
            plans, practices, policies and programs applicable generally to
            other peer executives of the Company, but in no event shall such
            plans, practices, policies and programs provide the Executive with
            opportunities and benefits less favorable than those in effect and
            applicable to the Executive immediately preceding the Change in
            Control.

                  (iii) Benefit Plans. During the Employment Period, the
            Executive and/or the Executive's family, as the case may be, shall
            be eligible for participation in and shall receive all benefits
            under welfare benefit plans, practices, policies and programs
            provided by the Company (including, without limitation, medical,
            prescription, dental, disability, salary continuance, employee life,
            group life, accidental death and travel accident insurance plans and
            programs) to the extent applicable generally to other peer
            executives of the Company, but in no event shall such plans,
            practices, policies and programs provide the Executive with benefits
            which are less favorable than such plans, practices, policies and
            programs in effect and applicable to the Executive immediately
            preceding the Change in Control.

                  (iv) Expenses. During the Employment Period, the Executive
            shall be entitled to receive prompt reimbursement for all reasonable
            employment related expenses incurred by the Executive in accordance
            with the policies, practices and procedures of the Company which
            shall not be less favorable than those in effect immediately
            preceding the Change in Control.

                  (v) Office and Support Staff. During the Employment Period,
            the Executive shall be entitled to an office or offices of a size
            and with furnishings, and to exclusive personal secretarial and
            other assistance, which shall be at least equal to that provided to
            the Executive by the Company immediately preceding the Change in
            Control.

                  (vi) Vacation. During the Employment Period Executive shall be
            entitled to paid vacations at least equal to that to which the
            Executive was entitled immediately preceding the Change in Control.

                  (vii) Options. Upon a Change in Control all options to
            purchase shares of the Company's Common Stock held by Executive (the
            "Options"), whether or not vested, shall vest and become exercisable
            in accordance with their terms immediately prior to the effective
            date of such Change in Control (and Executive will be provided a
            reasonable opportunity to exercise such Options prior to such

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<PAGE>

            effective date), notwithstanding anything to the contrary contained
            in the option certificates or any plan covering the Options
            (collectively, the "Plan") Upon a Change in Control all Options held
            by Executive shall be exercisable in accordance with their terms for
            such securities or property to which Executive would have been
            entitled had Executive exercised such Options prior to such Change
            in Control, notwithstanding anything to the contrary contained in
            any Plan covering such Options. Upon a Change in Control pursuant to
            Section 1(e)(iii) or 1(e)(v), all Options held by Executive, whether
            or not vested, shall terminate as of the effective date of such
            Change in Control to the extent not previously exercised, provided
            that Executive shall have been provided with a reasonable
            opportunity to exercise such options prior to such effective date,
            notwithstanding anything to the contrary contained in the Plan
            covering such Options. Notwithstanding the foregoing, the terms of
            [(1) the Option Agreement for the option to purchase [__________]
            shares of Common Stock granted to the Executive on July 31, 1997
            (the "Option Agreement") and (2)] any agreement entered into between
            the Executive and the Company granting an Award (as defined in the
            2000 Stock Plan approved by the stockholders of the Company at the
            2000 annual meeting of stockholders of the Company (the "2000
            Plan")) pursuant to the 2000 Plan (an "Award Agreement") and not the
            terms of this Agreement shall govern with respect to such options or
            Awards in the event of a Change in Control.

3. Termination of Employment.

            (a) Death or Disability. The Executive's employment shall terminate
automatically upon the Executive's death during the Employment Period. If the
Company determines in good faith that the Disability of the Executive has
occurred during the Employment Period (pursuant to the definition of Disability
set forth below), it may give to the Executive written notice in accordance with
Section 3(d) of its intention to terminate the Executive's employment. In such
event, the Executive's employment with the Company shall terminate effective on
the 30th day after receipt of such notice by the Executive (the "Disability
Effective Date"), provided that, within the thirty (30) days after such receipt,
the Executive shall not have returned to full-time performance of the
Executive's duties. For purposes of this Agreement, "Disability" shall mean a
physical or mental condition which prohibits Executive from performing his
duties hereunder for a continuous six (6) month period or for a total of six (6)
months during any eighteen (18) month period.

            (b) Just Cause. Executive's employment during the Employment Period
may be terminated by the Company for Just Cause. For purposes hereof, "Just
Cause" shall mean:

                  (i) the commission by Executive of a willful act of material
            fraud in the performance of his duties on behalf of the Company; or

                  (ii) the conviction of Executive for commission of a felony in
            connection with the performance of his duties on behalf of the
            Company.

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Prior to termination for Just Cause, the Board shall by a majority vote have
declared that Executive's termination is for Just Cause specifically stating the
basis for such determination.

            (c) Good Reason. Executive's employment during the Employment Period
may be terminated by Executive with Good Reason. For purposes hereof, "Good
Reason" shall mean:

                  (i) the assignment to Executive of any duties of lesser
            status, dignity and character than his duties immediately prior to
            the Change in Control or a substantial reduction in the nature or
            status of his responsibilities from those in effect immediately
            prior to the Change in Control;

                  (ii) any failure by the Company to comply with the provisions
            of Section 2(c);

                  (iii) relocation of Executive's office to a location which is
            more than fifteen (15) miles from the location in which Executive
            principally worked for the Company immediately prior to the Change
            in Control; or his being required by the Company in order to perform
            duties of substantially equal status, dignity and character to those
            duties he performed immediately prior to the Change in Control to
            travel on the Company's business to a substantially greater extent
            than is consistent with his business travel obligations immediately
            prior to a Change in Control;

                  (iv) the failure by the Company to comply with Section 6(a),
            provided that the successor has received at least twenty (20) days'
            prior written notice from the Company or the Executive of the
            requirements of Section 6(a); or,

                  (v) the voluntary termination by the Executive for any reason
            at any time after the 180th day immediately following a Change in
            Control.

For purposes of this Sections 3(c) any good faith determination of "Good Reason"
made by the Executive shall in all cases be conclusive; provided, however, that
for purposes of Sections 3(c)(i), (ii), (iii) and (iv), Executive shall have
given the Company prior written notice thereof and not less than twenty (20)
days to cure such "Good Reason".

            (d) Notice of Termination. Any termination by the Company for Just
Cause or by the Executive for Good Reason shall be communicated by Notice of
Termination to the other party hereby given in accordance with Section 7. For
purposes of this Agreement, a "Notice of Termination" means a written notice
which (i) indicates the specific termination provision in this Agreement relied
upon, (ii) to the extent applicable, sets forth in reasonable detail the facts
and circumstances claimed to provide a basis for termination of the Executive's
employment under the provision so indicated and (iii) specifies the Date of
Termination (as defined below) (which date shall be not more than thirty (30)
days after the giving of such notice). The failure by the Executive or the
Company to set forth in the Notice of Termination any fact or circumstance which
contributes to a showing of Good Reason or Just Cause shall not waive any right
of the Executive or the Company hereunder or preclude the Executive or the

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Company from asserting such fact or circumstance in enforcing the Executive's or
the Company's rights hereunder.

            (e) Date of Termination. "Date of Termination" means the date the
Company or the Executive specifies as the date of termination in the Notice of
Termination or if the Executive's employment is terminated by reason of death or
Disability, the Date of Termination shall be the date of death of the Executive
or the Disability Effective Date, as the case may be.

4. Obligations of Company upon Termination.

            (a) Termination by Company for Just Cause. If at any time on or
prior to the 180th day following the Commencement Date, the Executive's
employment shall be terminated by the Company for Just Cause, then, Executive
shall receive all then accrued pay, benefits, executive compensation and fringe
benefits, including (but not limited to), pro rata bonus and incentive plan
earnings through the Date of Termination, plus the amount of any compensation
previously deferred by the Executive, in each case to the extent theretofore
unpaid. The foregoing salary and cash bonus payments shall be deemed
compensation payable for the duties to be performed by Executive pursuant to
Section 2. If at any time after the 180th day following the Commencement Date,
the Executive's employment shall be terminated by the Company for Just Cause,
then the Executive shall be entitled to the payment and benefits described in
Section 4(b), below.

            (b) Termination by Executive for Good Reason; Termination by the
Company at Any Time Other Than For Just Cause; Termination by the Company For
Just Cause After the 180th Day Following the Commencement Date; Termination Upon
Expiration of the Employment Period.

            If (i) the Company shall terminate the Executive's employment at any
time other than for Just Cause; or, (ii) the Company shall terminate Executive's
employment for Just Cause after the 180th day following the Commencement Date;
or, (iii) the Executive shall terminate his employment at any time for Good
Reason; or (iv) the Executive's employment with the Company shall terminate upon
the expiration of the Employment Period, in addition to any other sums, benefits
or compensation otherwise payable to him by the Company:

                  (i) Executive shall receive, no later than the next pay period
            following the Date of Termination, all then accrued pay, benefits,
            executive compensation and fringe benefits, including (but not
            limited to), his pro rata bonus and incentive plan earnings accrued
            through the Date of Termination, plus the amount of any compensation
            previously deferred by the Executive, in each case to the extent
            theretofore unpaid;

                  (ii) Executive shall receive, at the Company's expense,
            medical, health and disability benefits which are substantially
            similar to the benefits the Company is providing him immediately
            preceding the Change in Control for a period of thirty-six (36)
            months immediately following the Date of Termination;

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                  (iii) Executive shall receive an amount equal to the sum of
            (A) 300% of his Base Period Compensation, plus (B) interest thereon
            for the period beginning on the Commencement Date through the date
            or dates of payment, at a rate equal to 120% of the applicable
            Federal rate, determined under Section 1274(d) of the Code,
            compounded semiannually;

                  (iv) Except in the case of a termination by the Company for
            Just Cause or a voluntary termination by the Executive in accordance
            with Section 3(c)(v), Executive shall receive the balance of all
            pay, benefits, compensation and fringe benefits, including (but not
            limited to), pro rata salary, bonus and incentive plan earnings
            payable through the remainder of the Employment Period; and

                  (v) Except in the case of a termination by the Company for
            Just Cause or a voluntary termination by the Executive in accordance
            with Section 3(c)(v), Executive shall be entitled to a private
            office with furnishings and secretarial and other reasonable
            services for the period beginning with the Date of Termination and
            ending on the first anniversary thereof.

The foregoing payments and benefits shall be deemed compensation payable for
duties to be performed by Executive pursuant to Section 2. Except for the
payments and benefits described in Sections 4(b)(i), 4(b)(ii), and 4(b)(v) the
sums due pursuant to this Section 4(b) shall be paid in one lump-sum payable no
later than sixty (60) days after the Date of Termination. All sums of money due
hereunder shall be subject to appropriate withholding and statutory
requirements. Executive shall not be required to mitigate the amount of any
payment provided for in this Section 4(b) by seeking other employment or
otherwise. Notwithstanding anything stated in this Section 4(b) to the contrary,
Company shall not be required to provide medical, health and/or disability
benefits to the extent such benefits would duplicate benefits received by
Executive in connection with his employment with any new employer.

            The determination of the amounts and benefits payable to the
Executive pursuant to Sections 4(b)(i), 4(b)(iii) and 4(b)(iv) (the "Combined
Amount") shall first be made by the Company in good faith, and the Company shall
notify the Executive of the Combined Amount as soon as possible after the Date
of Termination, but in no event later than forty-five (45) days prior to the
payment date of the sums due under Section 4(b)(iii) and 4(b)(iv). If the
Executive disagrees with the Company's determination of the Combined Amount,
then within ten (10) days after the date of such notification to the Executive,
the Executive shall notify the Company of such disagreement, the extent of such
disagreement (the "Disputed Amount") and the amount that is undisputed (the
"Undisputed Amount"). The Undisputed Amount shall be paid in one lump-sum
payable sixty (60) days after the Date of Termination, subject to appropriate
withholding and statutory requirements. If the Company disagrees with the
Executive's determination of the Combined Amount, then within ten (10) days
after the date of such notification to the Company, it shall furnish Executive
with a written appraisal of the Combined Amounts (the "First Appraisal")
prepared by an independent certified public accountant regularly employed by the
Company (the "First Appraiser"). If Executive disagrees with the amounts
determined pursuant to the First Appraisal, then within ten (10) days after
notice of the First Appraisal, he shall furnish the Company with a written
appraisal of the Combined Amount (the "Second Appraisal") prepared by an
independent certified public accountant (the "Second

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Appraiser"). Within ten (10) days after notice of the Second Appraisal, the
First Appraiser and the Second Appraiser shall meet and shall endeavor, within
ten (10) days of such meeting, to agree upon the Combined Amount and notify the
Company and the Executive thereof; provided, however, that if they are unable to
agree upon the Combined Amount, then, within (10) days of such meeting, they
shall engage an independent certified public accountant (the "Third Appraiser")
and notify the Company and the Executive of their engagement of the Third
Appraiser, whose determination of the Combined Amount, if any, shall be final
and conclusive and binding on the Company and the Executive. Within ten (10)
days after notice of such engagement, the Third Appraiser shall determine the
Combined Amount and notify the Company and the Executive of his determination
(the "Final Amount"). Except for the benefits described in Sections 4(b)(ii) and
4(b)(v), the Final Amount, as adjusted by any prior payment of the Undisputed
Amount or any payment made pursuant to Section 4(b)(i), shall be paid in one
lump-sum payable on the later of (i) sixty (60) days after the Date of
Termination, or (ii) twenty (20) days after notification of the Final Amount, in
either case subject to appropriate withholding and statutory requirements;
provided, however, that notwithstanding the foregoing, the Executive shall have
the option to decline the benefits described in Section 4(b)(ii) no later than
ten (10) days prior to such payment date.

            (c) Disability or Death. If the Executive's employment during the
Employment Period is terminated at any time by reason of the Executive's
Disability or death, this Agreement shall terminate without further obligations
to the Executive, his estate or legal representative, as the case may be, except
that the Company shall (i) pay to Executive within sixty (60) days after the
Date of Termination (A) amounts due and owing under Sections 4(b)(i) and
4(b)(iii) and (B) Executive's Annual Base Salary for the lesser of the six (6)
month period following the Date of Termination or the remaining portion of the
Employment Period, reduced in the case of Disability by amounts received by
Executive under any employee disability policy maintained by the Company for the
benefit of Executive and (ii) provide Executive, and his immediate family, as
the case may be, with the benefits provided by Section 4(b)(ii).

            (d) Additional Payment. Upon a Change in Control, Executive shall be
entitled to a payment (the "Additional Payment") equal to the product of (A)
[__________] multiplied by (B) the amount by which (i)(x) the value of the
consideration per share received or to be received by the shareholders of the
Company in connection with such Change in Control event or (y) in the event the
Change in Control does not result in any payment to the shareholders of the
Company, the average of the last reported sale price of the Company's Common
Stock for the five (5) trading days immediately preceding the effective date of
such Change in Control, exceeds (ii) $8.50. Such Additional Payment shall be
paid to Executive within five (5) business days after the effectiveness of such
Change in Control, subject to all withholdings required by law.

5. Nonexclusivity of Rights.

            Nothing in this Agreement shall prevent or limit the Executive's
continuing or future participation in any plan, program, policy or practice
provided by the Company and for which the Executive may qualify, nor shall
anything herein limit or otherwise affect such rights as the Executive may have
under any contract or agreement with the Company. Amounts which are vested
benefits or which the Executive is otherwise entitled to receive under any plan,
policy,

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practice or program of or any contract or agreement with the Company at or
subsequent to the Date of Termination shall be payable in accordance with such
plan, policy, practice or program or contract or agreement, except as explicitly
modified by this Agreement.

6. Successors; Binding Agreement.

            (a) The Company will require any successor (whether direct or
indirect by purchase, merger, consolidation or otherwise, to all or
substantially all of the business and/or assets of the Company) to expressly
assume and agree to perform this Agreement in the same manner and to the same
extent that the Company would be required to perform it if no such succession
had taken place.

            (b) This Agreement shall inure to the benefit of and be enforceable
by Executive's personal or legal representatives, executors, administrators,
successors, heirs, distributees, devisees and legatees.

7. Notices.

            All notices, requests, demands and other communications provided for
by this Agreement shall be in writing and shall be deemed to have been given
when delivered by hand and acknowledged by receipt or when mailed at any general
or branch United States Post Office enclosed in a registered or certified
postpaid envelope and addressed to the address of the respective party stated
below or to such changed address as the party may have provided to the other
party by notice in accordance herewith.

If to the Company:

         Osteotech, Inc.
         51 James Way
         Eatontown, New Jersey 07724
         Attention: Corporate Secretary

         With a copy to:

         Dorsey & Whitney LLP
         250 Park Avenue
         New York, NY 10177
         Attn: Kevin T. Collins, Esq.

If to the Executive:

         _________________________

         _________________________

         _________________________

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8. Miscellaneous.

            This Agreement may not be waived, modified or discharged unless such
waiver, modification or discharge is agreed to in writing and signed by
Executive and such officers of the Company as may be specifically designated by
its Board. The failure of either party to this Agreement to object to any breach
by the other party or the non-breaching party's conduct or forbearance shall not
constitute a waiver of that party's rights to enforce this Agreement. No waiver
by either party hereto at any time of any breach by the other party hereto of,
or compliance with, any condition or provision of this Agreement to be performed
by such other party shall be deemed a waiver of any subsequent breach by such
other party or any similar or dissimilar provisions or conditions at the same or
any prior or subsequent time. Except for that certain employment agreement dated
as of [________________ __, 20__] and entered into by and between the Company
and the Executive (the "Employment Agreement"), [the Option Agreement] and any
Award Agreement, no agreements or representations, oral or otherwise, express or
implied, with respect to the subject matter hereof have been made by either
party which are not expressly set forth in this Agreement. The Company and
Executive agree that to the extent any of the terms of the Employment Agreement
and this Agreement conflict, it is their intention that Executive in each case
receive the benefits under that agreement which are most favorable to the
Executive. In this regard, it is expressly agreed that the terms of this
Agreement that relate to a Change in Control (as defined in this Agreement)
shall be controlling over the terms of the Employment Agreement that relate to a
Change in Control. It is expressly agreed that the terms of the Option Agreement
and any Award Agreement (the "Stock Incentive Agreements") relating to the
vesting and exercise of any option or Award represented by such Stock Incentive
Agreements shall be controlling over the terms of this Agreement that relate to
the vesting and exercise of options and Awards. The validity, interpretation,
construction and performance of this Agreement shall be governed by the internal
laws of the State of New Jersey, without giving any effect to any conflict of
laws.

9. Severability.

            The invalidity or unenforceability of any provision of this
Agreement shall not affect the validity or enforceability of any other provision
of this Agreement.

10. Survival.

            The obligations of the parties under this Agreement shall survive
the term of this Agreement.

11. EMPLOYMENT PRIOR TO CHANGE IN CONTROL.

            THE EXECUTIVE AND THE COMPANY ACKNOWLEDGE THAT, EXCEPT AS OTHERWISE
PROVIDED IN THE EMPLOYMENT AGREEMENT, OR ANY RENEWAL, EXTENSION OR REPLACEMENT
THEREOF, THE EMPLOYMENT OF THE EXECUTIVE BY THE COMPANY IS, AND PRIOR TO THE
COMMENCEMENT DATE WILL CONTINUE TO BE, "AT WILL" AND, PRIOR TO THE COMMENCEMENT
DATE, MAY BE TERMINATED BY EITHER THE EXECUTIVE OR THE COMPANY AT ANY TIME UPON
SIXTY (60) DAYS' PRIOR TO WRITTEN NOTICE. MOREOVER, IF PRIOR

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TO THE COMMENCEMENT DATE, THE EXECUTIVE'S EMPLOYMENT WITH THE COMPANY
TERMINATES, THEN THE EXECUTIVE SHALL HAVE NO FURTHER RIGHTS UNDER THIS
AGREEMENT.

                                       OSTEOTECH, INC.

                                       By:
                                           -------------------------------------
                                            Name:
                                            Title:

                                       EXECUTIVE

                                       ----------------------------------------

                                       12Exhibit 10.62

                       AMENDMENT TO THE AGREEMENT BETWEEN
               OSTEOTECH, INC. AND MARC BUREL DATED APRIL 18, 2000

                             EFFECTIVE MARCH 1, 2002

      WHEREAS the Corporation and the Employee desire to modify Section 5.3 of
the Agreement, which, among other things stipulates that the Employee will
receive a Special Bonus over a period of four (4) years based on sales of tissue
and metal products, excluding base tissue, in certain areas as specified.

      NOW, THEREFORE, it is agreed that:

            (a)   the period in which the Special Bonus is to be paid is changed
                  from four (4) years from the original date of employment to
                  six (6) years.

            (b)   the threshold that has to be achieved to earn an incremental
                  6% commission of net sales (defined as net sales of tissue,
                  excluding base tissue, and metal products in New Jersey,
                  Delaware and Northeastern Pennsylvania) in excess of the
                  threshold, is changed from previous years net sales plus
                  twenty (20) percent to previous years net sales plus fifteen
                  (15) percent.

In all other respects, Section 5.3 shall remain unchanged.

AGREED TO BY:

Corporation:
Osteotech, Inc.                                   Employee:

By: /s/ Richard W. Bauer                          By: /s/ Marc Burel
   --------------------------------------            ---------------------------
   Richard W. Bauer                                  Marc Burel
   President, Chief Executive Officer

Dated: 2/26/02                                    Dated:    3/4/02
      -----------------------------------               ------------------------

<PAGE>

                              EMPLOYMENT AGREEMENT

      THIS AGREEMENT entered into the ___ day of April, 2000 ("Effective Date")
between OSTEOTECH, INC., a Delaware corporation (the "Corporation") and Marc
Burel (the "Employee").

                                   WITNESSETH:

      WHEREAS, the Corporation desires to employ the Employee as Vice President
Sales; and

      WHEREAS, the Employee desires to accept such employment upon the terms and
conditions set forth therein.

      NOW, THEREFORE, in consideration of the mutual covenants and obligations
hereinafter set forth, the parties hereto agree as follows:

      1. Employment. The Corporation hereby employs the Employee, and the
Employee hereby accepts employment by the Corporation, as Vice President Sales
upon the terms and conditions set forth herein.

      2. Term. Unless sooner terminated in accordance with this Agreement, the
term of this Agreement and the term of employment of the Employee shall be for
two (2) years commencing on the Effective Date hereof and shall be automatically
renewable for successive additional two (2) year terms unless at least three (3)
months prior to the expiration of the initial two-year period or any subsequent
two-year term the Corporation terminates this Agreement by written notice to the
Employee, whereupon this Agreement shall be terminated at the end of the
applicable two-year period (with such initial two year term and any two year
renewal thereof, unless sooner terminated in accordance with this Agreement
being the "Term of Employment").

<PAGE>

      3. Duties. The Employee shall perform such duties and services and shall
be allocated such resources, consistent with his position, as may be assigned to
him from time to time by the President. In furtherance of the foregoing, the
Employee hereby agrees to perform well and faithfully such duties and
responsibilities.

      4. Time to be Devoted to Employment.

      4(a). The Employee shall devote his full time and energy to the business
of the Corporation except for vacations, holidays and personal days and absences
due to temporary illness, during the Term of Employment and except as approved
by the Board of Directors.

      4(b). During the Term of Employment, the Employee shall not be engaged in
any other business activity. Employee hereby represents that he is not a party
to any agreement, contract, employment agreement or noncompetition agreement
which would be an impediment to entering into this Agreement and that he is
permitted to enter into this Agreement and perform the obligations hereunder.

      5. Compensation; Reimbursement.

      5.1(a) During the Term of Employment, the Corporation (or at the
Corporation's option, any subsidiary or affiliate thereof) shall pay to the
Employee an annual base salary ("Base Salary") of Two Hundred Ten Thousand
Dollars ($210,000.00), payable in semi monthly installments of Eight Thousand
Seven Hundred Fifty Dollars ($8,750), and subject to all withholdings and
deductions as required by state and federal law. The Base Salary shall be
reviewed annually and be subject to increase at the option and in the sole
discretion of the Board of Directors of the Corporation.

<PAGE>

      5.1(b) During the Term of Employment, on an annual basis, Employee may be
entitled to a bonus and stock option grants as determined by the Board of
Directors of the Corporation based on Employee's performance.

      5.1(c) During the Term of Employment, the Employee shall be entitled to
family medical and dental insurance coverage, short and long term disability
coverage, eligibility for participation in the Corporation's 401k plan and to
such other fringe benefits such as life insurance as are made available from
time to time to the executives of the Corporation, including four (4) weeks
vacation per calendar year.

      5.1(d) The Corporation shall reimburse Employee, in accordance with its
practice from time to time for other employees of the Corporation, for all
reasonable and necessary travel expenses, disbursements and other reasonable and
necessary incidental expenses incurred by him for or on behalf of the
Corporation in the performance of his duties hereunder upon presentation by the
Employee to the Corporation of appropriate vouchers.

      5.2 Contingent on the approval of the Board of Directors, the Corporation
agrees to grant to Employee, effective May 1, 2000, a stock option agreement to
purchase seventy five thousand (75,000) shares of common stock with the per
share price based on the closing price of the Corporation's common stock on May
1, 2000. One-fourth (1/4) of the option shall vest one year from the effective
date and one-fourth (1/4) shall vest thereafter on each anniversary of the
effective date of this Agreement so long as the Employee remains in the employ
of the Corporation on that date. The option shall terminate ninety (90) days
after termination of the Employee's employment with the Corporation and shall be
granted in accordance with the Corporation's Incentive Stock Option Plan as
amended from time to time.

<PAGE>

      5.3 Special Bonus Program. For a period of the next four (4) years,
Employee shall receive a four (4) percent commission on net sales of the
Corporation's tissue and metal products, excluding base tissue, in New Jersey,
Delaware, and Northeastern Pennsylvania as referenced in attachment A. Employee
will receive a total of ten (10) percent commission for net sales over Plan. For
the purposes of this Section 5.3, Plan shall be defined as the previous years
sales plus twenty (20) percent. Sales of the Corporation's allograft bone tissue
products that are not proprietary products are excluded from this program. The
maximum payment over the four year period of this program shall be Two Million
One Hundred Thousand Dollars ($2,100,000.00). However, should Employee's
employment terminate in accordance with Sections 7 or 9, within the four year
period, Employee agrees to repay fifty (50) percent of the commission paid to
him in accordance with the terms of this Section 5.3. If Employee's employment
terminates in accordance with Section 8, within the four year period, Employee
shall not be required to repay fifty (50) percent of the commission paid to him
in accordance with the terms of this Section 5.3.

            Upon the termination of Employee's employment, for any reason,
Employee shall no longer be eligible to receive any future bonus payments under
the terms of this Section 5.3.

      6. Termination due to Death or Disability. If Employee dies during the
Term of Employment, his employment hereunder and the Term of Employment shall be
deemed to cease as of the date of his death. If Employee becomes "disabled,"
including any physical or mental condition of the Employee that renders him
unable to perform the essential functions of his position, with or without
reasonable accommodation, subject to the terms of the Corporation's disability
policy, the Term of Employment shall be deemed to cease as of the determination
of disability.

<PAGE>

      7. Termination for Cause. The Corporation may terminate the employment of
the Employee hereunder and the Term of Employment at any time during the Term of
Employment for "cause" (such termination being hereinafter called a "Termination
For Cause") by giving the Employee notice of such termination, upon the giving
of which such termination shall take effect immediately. For the purposes of
this Section 7, "cause" shall mean (i) the Employee's willful misconduct with
respect to the business and affairs of the Corporation or any subsidiary or
affiliate thereof, which action materially and adversely affects the business or
affairs of the Corporation or any subsidiary or affiliate thereof, (ii) the
Employee fails in any material respect to observe and perform his obligations
and duties hereunder, (iii) the commission by the Employee of an act involving
embezzlement or fraud against the Corporation or commission or conviction of a
felony, or (iv) failure to abide in some material respect by the Corporation's
rules of conduct, terms and conditions set forth in the Corporation's handbook,
as amended from time to time.

      8. Termination Without Cause. The Corporation may terminate the employment
of the Employee hereunder and the Term of Employment at any time without "cause"
upon thirty (30) days prior written notice (such termination being hereinafter
called a "Termination Without Cause"). Upon a Termination without Cause during
the Term of Employment, Employee shall be entitled to receive his Base Salary
for twelve (12) months, from the date of termination. Employee shall be entitled
to receive all bonus payouts earned prior to the date of termination. In
addition, upon a Termination Without Cause at any time, the Corporation shall
continue to pay the Employee's family medical insurance premiums under the
Corporation's medical insurance plan and other benefits (including outplacement
benefits as long as you are actively seeking

<PAGE>

employment) provided in Section 5.1(c) for twelve (12) months following such
termination or until Employee obtains comparable employment, whichever occurs
sooner.

      9. Voluntary Termination. Any termination of the employment of the
Employee hereunder otherwise then as a result of an Termination due to Death or
Disability, a Termination For Cause or a Termination Without Cause shall be
deemed to be a "Voluntary Termination." A Voluntary Termination shall be deemed
to be effective immediately upon such termination.

      10. Effect of Termination of Employment.

      10(a). Upon the termination of the Employee's employment hereunder
pursuant to a Voluntary Termination, Termination due to Death or Disability, or
a Termination For Cause, neither the Employee nor his beneficiary or estate
shall have any further rights or claims against the Corporation under this
Agreement except to receive:

            (i) The unpaid portion of the Base Salary provided for in Section
5.1(a), computed on a pro rata basis to the date of termination;

            (ii) Reimbursement for any expenses for which the Employee shall not
have theretofore been reimbursed as provided in Section 5.1(d);

            (iii) Payment of all accrued and unused vacation time.

      10(b). Upon the termination of the Employee's employment hereunder
pursuant to a Termination Without Cause, neither the Employee nor his
beneficiary or estate shall have any further rights or claims against the
Corporation under this Agreement, except to receive a termination payment equal
to that provided for in Section 10(a) hereof, plus the amounts set forth in
Section 8, if any.

      10(c). Termination of Employment by Employee. If Employee terminates his
employment prior to the completion of the fourth year of employment after the
Effective Date,

<PAGE>

Employee shall be obligated to repay to the Corporation those amounts specified
in the Special Bonus Program set forth in Section 5.3 of this Agreement.

11. General Provisions.

      11(a). This Agreement and any or all terms hereof may not be changed,
waived, discharged, or terminated orally, but only by way of an instrument in
writing signed by the parties.

      11(b). This Agreement shall be governed by and construed in accordance
with the laws of the State of New Jersey, without reference to the conflicts of
laws of the State of New Jersey or any other jurisdiction.

      11(c). If any portion of this Agreement shall be found to be invalid or
contrary to public policy, the same may be modified or stricken by a Court of
competent jurisdiction, to the extent necessary to allow the Court to enforce
such provision in a manner which is as consistent with die original intent of
the provision as possible. The striking or modification by the Court of any
provision shall not have the effect of invalidating the Agreement as a whole.

      11(d). The obligations of Sections 8, 10, 11, 12, 13 and 14 shall survive
termination of this Agreement.

      12. Corporation Rights to Intellectual Property. The Employee shall
promptly disclose, grant and assign ownership to the Corporation for its sale
use and benefit any and all inventions, improvements, information, copyright,
and suggestions (whether patentable or not), which he may develop, acquire,
conceive or reduce to practice while employed by the Corporation (whether or not
during usual working hours), together with all patent applications, letters
patent, copyrights and reissues thereof that may at any time be granted for or
upon any such invention, improvement or information. In connection therewith:

<PAGE>

            (i) The Employee shall without charge, but at the expense of the
Corporation, promptly at all times hereafter execute and deliver such
applications, assignments, descriptions and other instruments as may be
reasonably necessary or proper in the opinion of the Corporation to vest title
to any such inventions, improvements, technical information, patent
applications, patents, copyrights or reissues thereof in the Corporation and to
enable it to obtain and retain the entire right and title thereto throughout the
world; and

            (ii) The Employee shall render to the Corporation at its expense
(including reimbursement to the Employee of reasonable out-of-pocket expenses
incurred by the Employee and a reasonable payment for the Employee's time
involved in case he is not then in its employ) all such assistance as it may
reasonably require in the prosecution of applications for said patents,
copyrights or reissues thereof, in the prosecution or defense of interferences
which may be declared involving any said applications, patents or copyrights and
in any litigation in which the Corporation may be involved relating to any such
patents, inventions, improvements or technical information.

      13. Protection of Information.

      13(a). Employee hereby covenants with Corporation that, throughout the
term of his employment by Corporation, Employee will serve Corporation's best
interests loyally and diligently. Throughout the course of employment by
Corporation and thereafter, Employee will not disclose or provide to any person,
firm, corporation or entity (except when authorized by Corporation) any
information, materials, biologies or animals which are owned by the Corporation
or which come into the possession of the Corporation from a third party under an
obligation of confidentiality, including without limitation, information
relating to trade secrets, business methods, products, processes, procedures,
development or experimental projects,

<PAGE>

suppliers, customer lists or the needs of customers or prospective customers,
clients, etc. (collectively "Confidential Information"), which Confidential
Information, comes into his possession or knowledge during the Term of
Employment, and he will not use such Confidential Information for his own
purpose or for the purpose of any person, firm, corporation or entity, other
than the Corporation.

      13(b). The provisions of Section 13(a) shall not apply to the following
Confidential Information:

            (i) Confidential Information which, at the time of disclosure, is
already in the public domain;

            (ii) Confidential Information which the Employee can demonstrate was
in his possession or known to him prior to the effective date of his employment
by the Corporation;

            (iii) Confidential Information which subsequently becomes part of
the public domain through no fault of the Employee;

            (iv) Confidential Information which becomes known to the Employee
through a third party who is under no obligation of confidentiality to the
Corporation; and

            (v) Confidential Information which is required to be disclosed by
law or by judicial or administrative proceedings.

      14. Non-Competition. The parties incorporate by reference, as if fully set
forth herein, the provisions of the Employee Confidential Information, and
Invention and NonCompetition Agreement executed concurrently with is Agreement,
and Employee agrees to abide by the terms of the non-competition agreement
contained therein. Employee further agrees that the restrictions and agreements
contained in the Employee Confidential Information, and Invention and
Non-Competition Agreement are reasonable and necessary to protect the legitimate
interests of the

<PAGE>

Corporation and that any violation of that Agreement, or this Agreement, will
cause substantial and irreparable harm to the Corporation that would not be
quantifiable and for which no adequate remedy would exist at law. Accordingly,
Employee authorizes the issuance of injunctive relief against him or her,
without the requirement of posting bond, for any violation of the Employee
Confidential Information, and Invention and Non-Competition Agreement.

      15. Notices. Notices and other communications hereunder shall be in
writing and shall be delivered personally or sent by air courier or first class
certified or registered mail, return receipt requested and postage prepaid,
addressed as follows unicss the party specifies a new address in writing:

                  If to the Employee:      ________________________
                                           ________________________
                                           ________________________

                  If to the Corporation:   Osteotech, Inc.
                                           51 James Way
                                           Eatontown, NJ 07724

All notices and other communications given to any party hereto in accordance
with the provisions of this Agreement shall be deemed to have been given to the
date of delivery if personally delivered; on the business day after the date
when sent if sent by air courier; and on the third business day after the date
when sent if sent by mail, in each case addressed to such party as provided in
this Section or in accordance with the latest unrevoked direction from such
party.

      16. Headings. The section headings contained in this Agreement are for
reference purposes only and shall not affect in any way the meaning or
interpretation of this Agreement.

      17. Assignment. This Agreement is personal in its nature and the parties
hereto shall not, without the consent of the other, assign or transfer this
Agreement or any rights or obligations hereunder, provided, however, that the
provisions hereof shall inure to the benefit of,

<PAGE>

and be binding upon each successor of the Corporation, whether by merger,
consolidation, transfer of all or substantially all assets, or otherwise and the
heirs and legal representatives of the employee.

      IN WITNESS WHEREOF, the parties have duly executed this Agreement as of
the date first above written.

           CORPORATION:               OSTEOTECH, INC.

                                      By: /s/ Marc Burel
                                         ------------------------------------
                                      Title:
                                             --------------------------------

                                      EMPLOYEE:

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