Document:

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                                  EXHIBIT 10.18

                          REGISTRATION RIGHTS AGREEMENT

         THIS AGREEMENT is dated February 20, 2001 by and between NOCOPI
TECHNOLOGIES, INC., a Maryland corporation (the "Company") and WESTVACO BRAND
SECURITY, INC., a Delaware corporation ("Holder").

                                   WITNESSETH:

         Holder is the record and beneficial owner of 3,917,030 shares (the
"Shares") of the Company's common stock, par value $.01 per share (the "Common
Stock") representing approximately ten percent (10%) of the Company's currently
outstanding Common Stock. Holder desires to obtain certain rights with respect
to the registration of Shares under the Securities Act of 1933, as amended (the
"Act") in order to facilitate the public sale and distribution of all or a part
of such Shares, and the Company is willing to furnish such rights under and
subject to the terms and conditions of this Agreement.

         NOW, THEREFORE, in consideration of the premises and the mutual
covenants herein contained, the parties hereby agree as follows:

         1.  Registration Rights.
             -------------------

                  (a) Registration of Common Stock by the Company. At any time
prior to February 20, 2003, whenever the Company shall propose to file a
registration statement (other than on Form S-4, Form S-8 or any successor forms
thereto) under the Securities Act of 1933, as amended (the "Act"), or a similar
document under any other statute then in effect corresponding to the Act
relating to the public offering of shares of Common Stock of the Company within
the United States (a "Registration Statement"), the Company shall (i) give
written notice at least thirty (30) days prior to the filing thereof to the
Holder specifying the date on which the Company proposes to file such
Registration Statement and advising the Holder of its right to have any Shares
included therein, (ii) at the written request of the Holder given to the Company
within fifteen (15) days after receipt of any such notice (which request shall
specify the Shares intended to be sold or disposed of), include among the
securities covered by such Registration Statement, the number of such Shares so
requested to be included, and (iii) use its reasonable efforts to cause such
Registration Statement to become effective and to remain effective for the
period required to permit the public offering and sale by the Holder of the
Shares covered thereby (but not for more than 90 days following the effective
date thereof). However, if all or any part of the proposed registration is to be
underwritten (whether on a "best efforts" or a "firm commitment" basis), the
managing underwriter shall have the right to exclude Shares to the extent the
inclusion of such Shares would, in the written opinion of such managing
underwriter, adversely affect the successful distribution of the underwritten
portion of the public offering, provided such exclusion applies on a
proportional basis not only to the Shares but also to all other securities
proposed to be included other than those for which the Company initiated the
registration. Any exclusion of Shares shall be made pro rata among the Holder
and other affected shareholders.
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                  (b) Ancillary Company Action to be Taken in Connection with
Any Registration. Whenever the Company shall include any Shares among the
securities covered by a Registration Statement pursuant to Section 1(a), the
Company shall (i) comply with all applicable rules and regulations of the
Securities and Exchange Commission in connection therewith, (ii) thereafter, for
such period of time as shall be required in connection with the transactions
contemplated thereby and permitted by applicable rules, regulations and
administrative practice (but not for more than 90 days following the effective
date of such Registration Statement), file such post-effective amendments and
supplements thereto as shall be necessary so that neither such Registration
Statement nor any related prospectus, prospectus supplement or amendment shall
contain any material misstatement or omission relative to the Company or any of
its assets or its business or affairs and so that such Registration Statement
and prospectus, prospectus supplement or amendment will otherwise comply with
all applicable legal requirements, (iii) furnish to the Holder such number of
copies of such Registration Statement and any related preliminary prospectus,
prospectus, post-effective amendment, supplement or similar document forming a
part thereof as Holder may reasonably request) and (iv) take all action which
may be necessary under the securities or Blue Sky laws of any state (except that
the Company shall not be required to qualify generally to do business as a
foreign corporation in any jurisdiction wherein it is not so qualified, to
subject itself to taxation in any such jurisdiction or to consent to general
service of process in any such jurisdiction), and as may be reasonably requested
by the Holder, to permit the public offering and sale of the Shares held by the
Holder and covered by such Registration Statement.

                  (c) Conditions Precedent to Registration. Anything in this
Section 1 to the contrary notwithstanding, the Company shall not be obliged to
include among the securities covered by a Registration Statement any Shares
requested to be so included pursuant to Section 1(a) unless the Holder shall
theretofore have furnished the Company, in writing, all information with respect
to the Holder, the Shares requested to be so included, the transaction or
transactions which the Holder contemplates and each underwriter who will act in
connection therewith, which any law, rule or regulation requires to be disclosed
therein. In addition, the obligations of the Company hereunder are subject to
and conditioned upon the Holder's providing such other information and taking
such action as may reasonably be requested by the Company in connection with
such registration.

                  (d) Expenses. If Holder requests that Shares be included in a
Registration Statement pursuant to Section 1(a), the out-of-pocket expense
incurred by the Company in connection with such Registration Statement or the
public offering of securities thereunder which it would not have incurred but
for such request, together with all underwriting discounts and commissions
applicable to Holder's Shares, shall be borne by the Holder.

                                      -2-
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                  (e) Indemnification. The Holder shall indemnify, and agree to
contribution in favor of, the Company, its directors, officers and affiliates,
for any losses caused by any untrue statement or alleged untrue statement of a
material fact or any omission or alleged omission of a material fact required to
be stated in such Registration Statement or prospectus or any preliminary
prospectus or any amendment or supplement thereto or necessary to make the
statements therein not misleading, but only to the extent that such untrue
statement or alleged untrue statement is contained in information specifically
furnished in writing by the Holder expressly for use therein.

                  Any person entitled to indemnification under the provisions of
the Section 1(e) shall (i) give prompt notice to the indemnifying party of any
claim with respect to which it seeks indemnification, and (ii) unless in such
indemnified party's reasonable judgment a conflict of interest between such
indemnified and indemnifying parties may exist in respect of such claim, permit
such indemnifying party to assume the defense of such claim, with counsel
reasonably satisfactory to the indemnified party; and if such defense is so
assumed, such indemnifying party shall not be subject to any liability for any
settlement made without its consent (which shall not be unreasonably withheld).

                  (f) Listing of Shares. At any time as any shares of Common
Stock are listed on a national securities exchange or designated as a national
market system security by the National Association of Securities Dealers, Inc.
("NASD"), or otherwise listed on the NASD automated quotation system, and a
Registration Statement filed pursuant to Section 1(a) has been declared
effective, the Company will promptly obtain and maintain the approval for
listing of each such exchange or system, as the case may be, of the Shares
included in such Registration Statement.

                  (g) Excluded Shares. Any Shares shall be cease to be entitled
to the benefits of the provisions of this Section 1 when (i) a Registration
Statement covering such Shares has been declared effective and they have been
disposed of pursuant to such effective Registration Statement, (ii) they are
distributed to the public pursuant to Rule 144 or Rule 144A under the Act, or
(iii) they have been otherwise transferred by the Holder.

                  (h) Holdback. The Holder agrees, to the extent required by
applicable law, not to effect any public sale or distribution of Shares, or any
securities convertible into or exchangeable or exercisable for such Shares,
during the five business days prior to, and during the 90 day period following,
the effective date of such Registration Statements (except as part of such
registration), if and to the extent timely notified in writing by the Company,
in the case of a non-underwritten public offering, or by the managing
underwriter, in the case of an underwritten public offering. The Company agrees
not to effect any public sale or distribution of Common

                                       -3-

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Stock, any securities similar to the Shares, or convertible into or exchangeable
or exercisable for such securities during the five business days prior to, and
during the 90 day period following, the effective date of any Registration
Statement in which the Holder is participating pursuant to this Section 1
(except as part of such registration and except pursuant to a registration on
Form S-4 or Form S-8, or any successor to such forms).

         2. Assignment; Binding Effect. This Agreement shall be binding upon and
inure to the benefit of the parties hereto and their respective successors and
assigns.

         3. Entire Agreement; Modification. This Agreement constitutes the
entire agreement of the parties with respect to its subject matter and
supersedes all prior or contemporaneous understandings, negotiations and
agreements of the parties concerning such subject matter. This Agreement may be
modified only in a writing signed by the parties hereto specifically stating an
intent to modify this Agreement.

         4. Governing Law. This Agreement shall be governed by, and construed
and interpreted in accordance with the substantive laws of the Commonwealth of
Pennsylvania applicable to contracts made and to be performed within that State,
without giving effect to conflicts of laws principles.

         5. Notice. Any notice, request or other communication required or
permitted to be given pursuant to this Agreement shall be in writing and shall
be (a) mailed by U.S. Express Mail or U.S. Certified Mail, in either case Return
Receipt Requested, (b) delivered by recognized overnight courier such as Federal
Express, or (c) hand delivered to the party to whom addressed at the following
addresses:

         if to the Company,         Nocopi Technologies, Inc.
                                    537 Apple St.
                                    West Conshohocken, PA 19428

                                    Attn: Michael A. Feinstein, Chairman

         with copy to:              Hangley Aronchick Segal & Pudlin
                                    One Logan Square
                                    Philadelphia, PA. 19103

                                    Attn: Thomas F. Hurley, Esquire

         if to the Holder,          Westvaco Brand Security, Inc.
                                    One High Ridge Park
                                    Stamford, CT 06905
                                    Attn: Stanley Hart, President

                                       -4-

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or at such other address as may be designated by a party in writing. All written
communications shall be deemed effective upon the earlier of the actual receipt
thereof by the addressee or the expiration of two business days from the date
such communication is placed in the hands of the post office, a recognized
overnight courier, or a messenger service.

         IN WITNESS WHEREOF, this Agreement has been executed by the parties the
day and year first above written.

                                       NOCOPI TECHNOLOGIES, INC.

                                       By:______________________________________
                                          Michael A. Feinstein, Chairman

                                       WESTVACO BRAND SECURITY, INC.

                                       By:______________________________________
                                          Stanley Hart, President

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                                  EXHIBIT 10.19

                     COLLATERAL ASSIGNMENT OF PATENT RIGHTS

         THIS COLLATERAL ASSIGNMENT OF PATENT RIGHTS (this "Assignment") is made
the 20th day of February, 2001 by and between NOCOPI TECHNOLOGIES, INC., a
Maryland corporation ("Assignor"), and WESTVACO BRAND SECURITY, INC., a Delaware
corporation ("Assignee").

                                   Background

         Assignor and Assignee have entered into a License Agreement dated as of
September 1, 2000 and an Amendment thereto dated December 19, 2000 (such
agreement, as so amended and as it may hereafter further be amended, is
hereinafter referred to as the "License Agreement") pursuant to which, among
other things, Assignor granted to Assignee rights to market, promote, sell and
manufacture certain products which incorporate "Nocopi Technology" (as such term
is defined in the License Agreement.) Certain elements of the Nocopi Technology
are the subject of one or more of the United States patents (such patents,
together with all related patent applications and submittals and all extensions
and modifications thereof, are hereinafter referred to as the "Patents").

         Assignor and Assignee desire to enter into this Agreement in order to
secure the performance by Assignor of its obligations under the License
Agreement.

         NOW, THEREFORE, in consideration of the foregoing and other good and
valuable consideration, receipt of which the parties hereby acknowledge, the
parties hereto, intending to be legally bound hereby, agree as follows:

         1. Assignment to Secure Obligations. To secure the full and timely
performance by Assignor of its obligations under the License Agreement and,
without limiting the generality of the foregoing, the prompt payment of any
damages owed by Assignor to Assignee by reason of Assignor's breach or wrongful
termination of the License Agreement, together with any interest accrued thereon
at the legal rate (collectively, the "Obligations"), Assignor hereby pledges,
assigns, hypothecates, delivers and sets over to Assignee and grants to Assignee
a first lien on, and first security interest in all of Assignor's right, title
and interest in and to all of the Patents heretofore or hereafter issued which
are related to any elements of the Nocopi Technology and all of Assignor's
rights thereunder and interests therein, together with all Proceeds of any of
the foregoing (collectively, the "Patent Rights").

                                       1

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         2. Certain Rights of Assignee After Event of Default.

                  2.1 Sale of Patent Rights. If an Event of Default, as
hereinafter defined, shall occur and be continuing, Assignee shall have the
right, without demand of performance or other demand, advertisement or further
notice of any kind (except the notice specified in Section 2.4 of the time and
place of public or private sale) to or upon the Assignor or any other person
(all and each of which demands, advertisements, and/or notices are, to the
extent permitted by law, hereby expressly waived), forthwith to collect,
receive, appropriate and realize upon the Patent Rights, or any part thereof,
and forthwith to sell, assign, give option or options to purchase, contract to
sell or otherwise dispose of and deliver the Patent Rights, or any part thereof,
in one or more public or private sale or sales, at any exchange, board, auction
or at the Assignee's offices or elsewhere, at such prices and on such terms as
the Assignee may deem best, for cash or on credit or for future delivery without
assumption of any credit risk. At any such sale or sales Assignee or its nominee
may purchase any or all of the Patent Rights upon such terms as he may deem
best. Any sale shall be conducted in a commercially reasonable manner.

                  2.2 Effect of Sale. Upon any such sale or sales, the Patent
Rights so sold shall be held by the purchasers thereof absolutely free from any
right or equity of redemption in Assignor, or any similar rights, claims or
equities, all of which are hereby expressly waived and released by Assignor.

                  2.3 Application of Proceeds Upon Disposition of the
Collateral. The proceeds of any sale or sales of the Patent Rights shall be
received and applied, after deduction for any expenses of sale including
reasonable attorneys' fees and disbursements, to the payment of the Obligations
in any manner or order which Assignee, in its sole discretion, may elect,
without further notice to or consent of Assignor and without regard to any
equitable principles of marshaling or other like equitable doctrines, and any
excess shall be returned to Assignor. Assignor hereby acknowledges and agrees
that Assignee is not required to exercise all remedies and rights available to
him equally with respect to all of the Patent Rights and Assignee may select
less than all of the Patent Rights with respect to which the remedies as
determined by Assignee may be exercised.

                  2.4 Reasonable Notice of Proposed Sale. Assignee agrees to
give ten (10) days advance notice to the Assignor of the time and place of any
public or private sale or sales of the Patent Rights and the Assignor agrees
that such notice shall constitute reasonable notification.

                  2.5 Remedies Cumulative. Assignor agrees that the rights,
powers and remedies given to Assignee by this Agreement are cumulative and not
exclusive of any thereof or of any other powers, rights or remedies available to
Assignee.

         3. Representations and Warranties. Assignor hereby covenants,
represents and warrants as follows:

                  3.1 The Patent Rights are owned by Assignor free and clear of
any pledge, mortgage, hypothecation, lien, charge, encumbrance, or security
interest therein or any other adverse claim with respect thereto.

                                        2

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                  3.2 This Assignment creates a valid first lien on and
perfected security interest in the Patent Rights, subject to no prior security
interest, lien, charge, or encumbrance or agreement granting or purporting to
grant to any third party a security interest or other lien in the Patent Rights.

                  3.3 As long as any part of the Obligations is outstanding or
not paid in full, Assignor will not sell, assign, convey, or otherwise dispose
of any of the Patent Rights, nor create, incur, or permit to exist any pledge,
mortgage, lien, charge, encumbrance, or any security interest whatsoever with
respect to the Patent Rights.

                  3.4 Assignor shall not change its name or commence to do
business under any other name without having first (a) given to Assignee at
least thirty (30) days' prior written notice of such change and (b) executed,
delivered and filed (and paid filing fees and taxes) all such documents as may
be necessary or advisable in the opinion of Assignee to continue to perfect and
protect the liens created hereby.

                  3.5 Assignor has full right, power and authority to enter into
this Assignment. The execution and delivery of this Assignment by Assignor has
been duly authorized by the board of directors of Assignor, and such action by
the Assignor's board of directors constitutes all necessary corporate action on
the part of Assignor in connection with such execution and delivery.

For the purposes of this Section 3, it is understood and agreed that the
interests of other licensees of the Nocopi Technology or elements thereof will
be deemed not to be an encumbrance upon any of the Patent Rights.

         4. Further Assurances. Assignor agrees that at any time or times,
promptly upon written request by the Assignee, Assignor will execute and deliver
such further documents and do such further acts as may, in the reasonable
opinion of Assignee, be necessary to assure that the Patent Rights are subject
to a valid, perfected first security interest and/or first lien hereunder, and
at Assignor's expense, cause all such documents to be filed or recorded in the
manner required by law to secure the effectiveness and the continuation and
perfection of the security interests hereby created.

         5. Additional Security. Assignee may take or release other security,
may grant extensions, renewals or indulgences with respect to the Obligations,
and may apply any other security therefor held by Assignor to the satisfaction
of the Obligations without prejudice to any of its rights hereunder.

         6. Satisfaction of Obligations. Upon the full satisfaction of the
Obligations, this Assignment shall become void and of no further effect, and, in
such event, upon the reasonable request of Assignor, Assignee shall execute,
deliver and file such documents as Assignor may reasonably determine are
necessary or appropriate to confirm that the Obligations have been satisfied
and/or that the security interest granted herein is terminated.

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         7. Event of Default. An Event of Default shall exist hereunder at such
time as (i) Assignor shall have committed a material breach of the License
Agreement, and (ii) the amount of Assignee's claim against Assignor arising from
such breach shall have been liquidated by agreement of the parties, by entry of
a final non-appealable judgment by a court having jurisdiction, or by allowance
of such claim in connection with bankruptcy proceedings of Assignor.

         8. Assignment. Assignee may assign all (but not less than all) of its
right, title and interest in and to this Assignment, but only in connection with
the permitted assignment of its interest under the License Agreement and only to
the permitted assignee of such interest.

         9. Severability. Any provision of this Agreement prohibited or
unenforceable in any jurisdiction shall, as to such jurisdiction, be ineffective
to the extent of such prohibition or unenforceability without invalidating the
remaining provisions hereof, and any such prohibition or unenforceability in any
jurisdiction shall not invalidate or render unenforceable such provisions in any
other jurisdiction.

         10. Survival of Terms. All agreements, covenants, representations and
warranties in this Assignment shall survive the execution and delivery of this
Assignment.

         11. Expenses. Assignor will reimburse Assignee for all reasonable costs
of collection or enforcement (including without limitation reasonable attorneys'
fees and expenses) incurred in enforcing the obligations Assignor under this
Assignment.

         12. Notices. All notices required hereunder or given in connection with
this Assignment shall be given in the manner permitted or required in the
License Agreement.

         13. Miscellaneous. This Assignment shall be construed and enforced in
accordance with and governed by the laws of the Commonwealth of Pennsylvania,
and it shall be binding upon Assignor and Assignee and their respective
successors and assigns, and may not be terminated or modified orally but only in
writing making specific reference hereto and signed by all the parties hereto.
Headings in this Assignment are for reference purposes only and shall not limit
or otherwise affect the meaning hereof. This Assignment may be executed in any
number of counterparts, each of which shall be an original, but all of which
together shall constitute one Assignment.

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         IN WITNESS WHEREOF, each of the parties hereto has caused this
Assignment to be duly executed as of the date first above written.

NOCOPI TECHNOLOGIES, INC.                       WESTVACO BRAND SECURITY, INC.

By:___________________________                  By:_____________________________
   Michael A. Feinstein, M.D.,                     Stanley Hart, President
   Chairman

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                                    Exhibit A

                            [List of Patents Pledged]

                                        6

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