Document:

EX-4.1

	COMMON STOCK COMMON STOCK DP DUOYUAN PRINTING, INC. INCORPORATED UNDER THE LAWS OF THE
STATE OF WYOMING SEE REVERSE FOR CERTAIN DEFINITIONS CUSIP 26605B 10 9 THIS CERTIFIES
THAT B C Y: OUN AMERICAN T ERSI GN IS THE OWNER OF E D A N D TOTAL AUTHORIZED ISSUE
100,000,000 SHARES OF COMMON STOCK $0.001 PAR VALUE R E STOCK G DUOYUAN PRINTING, INC.
TRANSF ISTE R transferable on the books of the Corporation by the holder hereof in person
or by duly authorized attorney upon surrender of this Certificate properly E D (New :
endorsed. This Certificate is not valid unless countersigned and registered by the
Transfer Agent and Registrar. York E WITNESS the facsimile signatures of the
Corporation’s duly authorized officers. , R T N Y & RANS ) DATED F E R TRUST A U T COMPAN
H AGEN O R T A IZED ND R Y , SIGNATUR E G I LLC STR A CHAIRMAN OF THE BOARD OF DIRECTORS
CHIEF EXECUTIVE OFFICER
ABnote North America 711 ARMSTRONG LANE PROOF OF: NOV EMBER 10, 2009 COLUMBIA, T ENNESSEE
38401 DUOYUAN PRINTING, INC. (931) 388-3003 TSB 00639 SALES: HOLLY GRONER 931-490-7660 OPERATOR:
AP/JB R2 PLEASE INITIAL THE APPRO PRIATE SELECTION FOR THIS PROOF: OK AS IS OK WITH CHANGES MAKE
CHANGES AND SEND ANOTHER PROOF Colors Selected for Printing: Intaglio prints in SC-15 MAROON.
COLOR:This proof was printed from a digital file or artwork on a graphics quality, color laser
printer. It is a good representation of the color as it will appear on the final product. H owever,
it is not an exact color rendition, and the final printed product may appear slightly different
from the proof due to the difference between the dyes and printing ink.

 

 

	DUOYUAN PRINTING, INC. The following abbreviations, when used in the inscription on the face of
this certificate, shall be construed as though they were written out in full according to
applicable laws or regulations: TEN COM — as tenants in common UNIF GIFT MIN ACT— Custodian TEN
ENT — as tenants by the entireties (Cust) (Minor) JT TEN — as joint tenants with right under
Uniform Gifts to Minors of survivorship and not as Act tenants in common (State) Additional
abbreviations may also be used though not in the above list. For value received, hereby sell,
assign and transfer unto PLEASE INSERT SOCIAL SECURITY OR OTHER IDENTIFYING NUMBER OF ASSIGNEE
PLEASE PRINT OR TYPEWRITE NAME AND ADDRESS INCLUDING POSTAL ZIP CODE OF ASSIGNEE Shares of the
common stock represented by the within Certificate, and do hereby irrevocably constitute and
appoint Attorney to transfer the said stock on the books of the within-named Corporation with full
power of substitution in the premises. Dated, NOTICE: THE SIGNATURE TO THIS ASSIGNMENT MUST
CORRESPOND WITH THE NAME AS WRITTEN UPON THE FACE OF THE CERTIFICATE, IN EVERY PARTICULAR, WITHOUT
ALTERATION OR ENLARGEMENT, OR ANY CHANGE WHATEVER. SIGNATURE(S) GUARANTEED: THE SIGNATURE(S) MUST
BE GUARANTEED BY AN ELIGIBLE GUARANTOR INSTITUTION (BANKS, STOCKBROKERS, SAVINGS AND LOAN
ASSOCIATIONS AND CREDIT UNIONS WITH MEMBERSHIP IN AN APPROVED SIGNATURE GUARANTEE MEDALLION
PROGRAM), PURSUANT TO S.E.C. RULE 17Ad-15. ABnote North America 711 ARMSTRONG LANE PROOF OF:
NOVEMBER 6, 2009 COLUMBIA, TENNESSEE 38401 DUOYUAN PRINTING, INC. (931) 388-3003 TSB 00639 SALES:
HOLLY GRONER 931-490-7660 OPERATOR: AP R1 PLEASE INITIAL THE APPROPRIATE SELECTION FOR THIS PROOF:
OK AS IS OK WITH CHANGES MAKE CHANGES AND SEND ANOTHER PROOFexv10w2

Exhibit 10.2

PATENT AND TECHNOLOGY ASSIGNMENT AGREEMENT

     This Patent and Technology Assignment Agreement (“AGREEMENT”), is by and between ADVIRNA, LLC,
a Colorado limited liability company having its principal place of business at 4550 Squires,
Boulder, CO 80305 (“ADVIRNA”) and RXi Pharmaceuticals Corporation, a Delaware corporation, having
its principal place of business at 60 Prescott Street, Worcester, MA 01605 (“RXi”). ADVIRNA and
RXi may each be referred to as a “PARTY” and collectively as the “PARTIES”. For good and valuable
consideration, the receipt and adequacy of which is hereby acknowledged, the PARTIES agree as
follows:

1.0 Background of Agreement

     1.1 ADVIRNA owns certain PATENT RIGHTS and TECHNOLOGY RIGHTS.

     1.2 The PARTIES entered into an Option Agreement dated November 12, 2008, pursuant to which
RXi obtained an option to enter into an exclusive license in respect of such PATENT RIGHTS and
TECHNOLOGY RIGHTS.

     1.3 In lieu of such exclusive license, RXi desires to acquire from ADVIRNA, and ADVIRNA
desires to assign, transfer and convey to RXi, all right, title and interest in and to selected
PATENT RIGHTS and TECHNOLOGY RIGHTS of ADVIRNA and RXi desires to develop, sell and distribute
products derived therefrom.

     1.4 RXi shall grant ADVIRNA an exclusive license (with the right to grant sublicenses) to the
PATENT RIGHTS and TECHNOLOGY RIGHTS to develop, manufacture, sell and distribute products in the
GRANT-BACK FIELD. Such exclusive license in the GRANT-BACK FIELD is at no cost to ADVIRNA and is
given in consideration of assignment of the PATENT RIGHTS and TECHNOLOGY RIGHTS (by ADVIRNA to
RXi).

     1.5 ADVIRNA represents that Anastasia Khvorova, Ph.D., the inventor of PATENT RIGHTS and
TECHNOLOGY RIGHTS, developed such rights prior to her service as the Chief Scientific Officer for
RXi.

2.0 Definitions

     As used herein, the following terms shall have the meanings set forth below:

     2.1 “EFFECTIVE DATE” means September 21, 2009.

     2.2 “GRANT-BACK FIELD” means the [**].

     2.3 “INITIATION” means [**].

     2.4 “NET SALES PRICE”, for the purpose of computing royalties, means amounts collected by RXi
in respect of ROYALTY-BEARING PRODUCTS, f.o.b. factory, after deduction of regular trade and
quantity discounts, but before deduction of any other items, including but not limited to freight
allowances, cash discounts, and agents’ commissions. Where ROYALTY-BEARING PRODUCTS are not sold,
but are otherwise disposed of, the NET SALES PRICE of such ROYALTY-BEARING PRODUCTS for the
purposes of computing royalties will be the selling price at which products of similar

 

			
	[**]	= 	Portions of this exhibit have been omitted pursuant to a confidential treatment request. An unredacted version of this exhibit has been filed separately with the Commission.

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kind and quality, sold in similar quantities, are currently being offered for sale by RXi.
Where such ROYALTY-BEARING PRODUCTS are not currently being offered for sale by RXi, the NET SALES
PRICE of ROYALTY-BEARING PRODUCTS otherwise disposed of, for the purpose of computing royalties,
will be the average selling price at which products of similar kind and quality, sold in similar
quantities, are then currently being offered for sale by other manufacturers. In order to assure
to ADVIRNA the full royalty payments contemplated in this AGREEMENT, RXi agrees that in the event
any ROYALTY-BEARING PRODUCTS are sold for purposes of resale either (1) to a corporation, firm, or
association that, or individual who, owns a controlling interest in RXi by stock ownership or
otherwise, or (2) to a corporation, firm, or association in which RXi or its stockholders own a
controlling interest by stock ownership or otherwise, the royalties to be paid in respect to such
ROYALTY-BEARING PRODUCTS will be computed on the NET SELLING PRICE at which the purchaser for
resale sells such ROYALTY-BEARING PRODUCTS rather than upon the NET SELLING PRICE of RXi.

     2.5 “PATENT RIGHTS” mean any ADVIRNA rights to pending or issued patent claims supported by
U.S. Patent Application [**], entitled [**], and any patent application related or claiming
priority to [**], and any divisional, continuation, or continuation-in-part of the foregoing, to
the extent the claims are directed to subject matter specifically described and supported in [**],
as well as in any patents issued on any of the foregoing and any reissues or reexaminations or
extensions of the patents, and any foreign counterparts to any of the foregoing.

     2.6 “ROYALTY-BEARING PRODUCT” means any product that is developed, manufactured, used, or sold
in a manner that is covered by one or more VALID CLAIM.

     2.7 “TECHNOLOGY RIGHTS” mean ADVIRNA’s rights in any technical information, know-how, process,
procedure, composition, method, formula, protocol, trade secrets, technique or data developed by
Anastasia Khvorova, Ph.D. (“INVENTOR”) at ADVIRNA prior to her employment relationship with RXi.
Such rights relate to TECHNOLOGY RIGHTS which are not covered by PATENT RIGHTS, but which are
necessary for practicing the invention covered by PATENT RIGHTS. Subsequent to INVENTOR’s
employment relationship with RXi, all inventions, patents and technology rights developed by
INVENTOR are owned by RXi under an assignment of invention and disclosure agreement executed by
INVENTOR on October 18, 2008.

     2.8 “TERRITORY” means worldwide.

     2.9 “VALID CLAIM” means (a) a claim of an issued and unexpired patent within the PATENT RIGHTS
which has not been permanently revoked or held unenforceable or invalid by an unappealable or
unappealed decision of a court or government agency of competent jurisdiction or (b) a claim of a
pending patent application within the PATENT RIGHTS that has not been abandoned or finally
disallowed without the possibility of appeal or refilling.

3.0 Assignment; Exclusive License in Favor of ADVIRNA

     3.1 ADVIRNA hereby assigns, transfers and conveys to RXi all of ADVIRNA’s rights, titles, and
interests throughout the TERRITORY in and to the PATENT RIGHTS and TECHNOLOGY RIGHTS, and further,
all rights and privileges pertaining to the PATENT RIGHTS and TECHNOLOGY RIGHTS, including, without
limitation, the right, if any, to sue or bring and recover for, and the right to profits or damages
due or accrued, arising out of or in connection with, any and all actions for past, present and
future infringement thereof.

 

			
	[**]	=	 Portions of this exhibit have been omitted pursuant to a confidential treatment request. An unredacted version of this exhibit has been filed separately with the Commission.

2

 

     3.2 ADVIRNA agrees to take such further action and to execute such documents as RXi may
reasonably request to effect or confirm the conveyance to RXi of the PATENT RIGHTS and TECHNOLOGY
RIGHTS, including without limitation executing and delivering to RXi the Assignment of Patents
attached hereto as Exhibit A.

     3.3 ADVIRNA further agrees that this assignment shall be deemed a full legal and formal
equivalent of any assignment, consent to file or like document which may be required in any country
for any purpose regarding the subject matter hereof, as well as constituting proof of the right of
RXi or its successors, assigns or nominees to apply for patent or other proper protection described
in the PATENT RIGHTS and TECHNOLOGY RIGHTS, and to claim the aforesaid benefits of the right of
priority provided by the International Convention for the Protection of Industrial Property, as
amended, or by any convention which may henceforth be substituted for it.

     3.4 RXi hereby agrees to grant to ADVIRNA an exclusive,, sublicensable, royalty-free, fully
paid-up, no cost, right and license throughout the TERRITORY in and to the PATENT RIGHTS and
TECHNOLOGY RIGHTS in the GRANT-BACK FIELD (the “LICENSE BACK”). For clarity, the LICENSE BACK to
ADVIRNA in the GRANT-BACK FIELD is free of charge, milestones and royalties and is given in
consideration of ADVIRNA assigning the PATENT RIGHTS and TECHNOLOGY RIGHTS to RXi. The general
outline of the terms and conditions of such LICENSE BACK is specified in Exhibit C and the PARTIES
will negotiate in good faith toward execution of such LICENSE BACK in accordance with the terms set
forth on Exhibit C and such other terms and conditions as are customary in similar license
agreements within 60 days following EFFECTIVE DATE. RXi shall not grant to any third party any
rights or licenses to the PATENT RIGHTS or TECHNOLOGY RIGHTS in the GRANT-BACK FIELD.

4.0 Fees, Royalties and Other Consideration

     4.1 ADVIRNA acknowledges that RXi has paid to ADVIRNA a [**] fee prior to the EFFECTIVE DATE,
which is nonrefundable and is creditable against the royalty set forth in Section 4.3.

     4.2 RXi agrees to pay an annual maintenance fee of [**] beginning January 1st 2011,
to maintain its rights hereunder, which maintenance fee is non refundable. In the event that RXi
fails to pay such annual maintenance fee, RXi agrees to assign all right, title and interest in and
to the PATENT RIGHTS and TECHNOLOGY RIGHTS to ADVIRNA, provided that at RXi’s option, such
assignment shall be subject to a nonexclusive license to be negotiated by the PARTIES in good faith
at such time, which shall be reasonably consistent with the other terms and conditions of this
AGREEMENT. Following any such assignment, RXi shall have no further payment obligations to ADVIRNA
hereunder, other than payments which accrued prior to the date of such assignment.

     4.3 RXi agrees to pay ADVIRNA a royalty of [**] of the NET SALES PRICE of a part of a
ROYALTY-BEARING PRODUCT sold or otherwise disposed of by RXi.

     4.4 RXi shall control the prosecution and pay directly for all patent and maintenance costs
during the term of this AGREEMENT. RXi agrees to provide ADVIRNA reasonable opportunity to review
and comment on prosecution matters, including by providing ADVIRNA with a copy of material
communications from any patent authority regarding such PATENT RIGHTS, and by providing drafts of
any material filings or responses to be made to such patent authorities at least thirty (30) days
in advance of submitting such filings or responses. RXi shall reasonably consider and incorporate
ADVIRNA’s

 

			
	[**]	=	 Portions of this exhibit have been omitted pursuant to a confidential treatment request. An unredacted version of this exhibit has been filed separately with the Commission.

3

 

comments in good faith and ensure that inventorship conforms to the rules of the laws of the
country in which such patent application is filed.

     4.5 If, at any time, RXi decides at its sole discretion to abandon the prosecution and
maintenance of PATENT RIGHTS, RXi agrees to assign all right, title and interest in and to the
PATENT RIGHTS and TECHNOLOGY RIGHTS to ADVIRNA and ADVIRNA will be solely responsible for
prosecution and maintenance costs of the PATENT RIGHTS. Following any such assignment, RXi shall
have no further payment obligations to ADVIRNA hereunder, other than payments which accrued prior
to the date of such assignment.

     4.6 RXi hereby grants ADVIRNA, as security for performance of its payment obligations pursuant
to this AGREEMENT a first priority security interest in the PATENT RIGHTS and TECHNOLOGY RIGHTS, as
described in the Security Agreement attached hereto as Exhibit B (“SECURITY AGREEMENT”). As set
forth in the SECURITY AGREEMENT, ADVIRNA will have all the rights and remedies afforded secured
parties. RXi will execute, deliver, file and record any statement, instrument, agreement or other
document and take any other action (including, without limitation, any filings with the United
States Patent and Trademark Office and any filings of financing or continuation statements under
the Uniform Commercial Code) in order to create, preserve, upgrade in rank, perfect, confirm or
validate the security interest or enable ADVIRNA to obtain the full benefits of such security
interest.

5.0 Milestone Payments

     5.1 RXi agrees to pay on the milestones set forth below the following payments:

	 	•	 	[**].
	 
	 	•	 	[**].
	 
	 	•	 	[**].
	 
	 	•	 	[**].

[**]. Payment is to be made upon each event as described above [**]. For exemplary purposes,
payment shall be made upon [**]. Notwithstanding the foregoing, in the event that a payment is made
above in respect of [**] then the above milestone payments will only be payable once.

6.0 Licensing

     6.1 RXi will use commercially reasonable efforts to promote, negotiate and grant licenses to
the PATENT RIGHTS and TECHNOLOGY RIGHTS in TERRITORY, and it is the intent of the PARTIES that such
licenses will be available to all qualified third parties on fair and reasonable terms.

     6.2 The granting of licenses under the PATENTS RIGHTS and TECHNOLOGY RIGHTS by RXi will be in
the discretion of RXi, and RXi will have the sole power to determine whether or not to grant
licenses, and the royalty rates and terms and conditions of such licenses. All license agreements
shall be shared with ADVIRNA promptly after execution of the documents, all of which shall be
deemed to be RXi CONFIDENTIAL INFORMATION.

 

			
	[**]	=	Portions of this exhibit have been omitted pursuant to a confidential treatment request. An unredacted version of this exhibit has been filed separately with the Commission.

4

 

     6.3 RXi will pay to ADVIRNA [**]. Payment of ADVIRNA’s [**] will be made to ADVIRNA
semiannually as provided in Section 7.0.

7.0 Payments

     Not later than the last day of each January and July, RXi must furnish to ADVIRNA a written
statement of all amounts due pursuant to Sections 4.3 and 6.3 for the semiannual periods ended the
last days of the preceding December and June, respectively, and must pay to ADVIRNA all amounts due
to ADVIRNA in US Dollars. If no amount is accrued during any semiannual period, a written
statement to that effect will be furnished.

8.0 Representations and Disclaimer of Warranties

     8.1 MUTUAL REPRESENTATIONS. Each of the PARTIES hereby represents and warrants to the other
PARTY that, as of the EFFECTIVE DATE:

	 	(a)	 	Such PARTY has full corporate right, power and authority to enter into this AGREEMENT
and to perform its respective obligations under this AGREEMENT and that it has the right to
grant the assignments, licenses and sublicenses granted pursuant to this AGREEMENT;
	 
	 	(b)	 	This AGREEMENT is a legal and valid obligation binding upon such PARTY and enforceable
in accordance with its terms. The execution, delivery and performance of this AGREEMENT by
such PARTY does not conflict with any agreement, instrument or understanding, oral or
written, to which it is a party or by which it is bound, nor, to its knowledge, violate any
law or regulation having jurisdiction over it;
	 
	 	(c)	 	Such PARTY has not granted any right to any third party that would conflict with the
rights granted to the other PARTY hereunder;
	 
	 	(d)	 	Except for regulatory approvals, pricing and/or reimbursement approvals, manufacturing
approvals and/or similar approvals necessary for the development, manufacture or
commercialization of a ROYALTY-BEARING PRODUCT (and the components thereof), such PARTY has
obtained all necessary consents, approvals and authorizations of all government authorities
and other persons required to be obtained by it as of the EFFECTIVE DATE in connection with
the execution, delivery and performance of this AGREEMENT; and
	 
	 	(e)	 	There is no action or proceeding pending or, to such PARTY’s knowledge, threatened,
that questions the validity of this AGREEMENT or any action taken by such PARTY in
connection with the execution of this AGREEMENT.

     8.2 ADDITIONAL REPRESENTATIONS OF ADVIRNA. ADVIRNA hereby represents and warrants to RXi
that, as of the EFFECTIVE DATE:

	 	(a)	 	ADVIRNA owns all right, title and interest in and to the PATENT RIGHTS and TECHNOLOGY
RIGHTS and has full power and authority to assign, transfer and convey all right, title and
interest in and to the PATENT RIGHTS and TECHNOLOGY RIGHTS as set forth in this AGREEMENT;
	 
	 	(b)	 	All the patents and patent applications that are part of the PATENT RIGHTS and
TECHNOLOGY RIGHTS existing as of the EFFECTIVE DATE are identified under Section 2.5, and
there are no other patents, patent applications or inventions owned by ADVIRNA or to which
the INVENTOR is a named inventor that cover or relate to inventions or claims disclosed in
the 

 

			
	[**]	=	Portions of this exhibit have been omitted pursuant to a confidential treatment request. An unredacted version of this exhibit has been filed separately with the Commission.

5

 

			
	 	 	PATENT RIGHTS or TECHNOLOGY RIGHTS (except for any patents or patent applications assigned to RXi pursuant to INVENTOR’s employment relationship with RXi). To ADVIRNA’s
knowledge, all patent applications within the PATENT RIGHTS are still pending and all issued
patents within the PATENT RIGHTS are in good standing and have not been abandoned; and
	 

			
	     (c)	 	To ADVIRNA’s knowledge, ADVIRNA is not a party to an interference relating to the
subject matter of the PATENT RIGHTS.

     8.3 LIMITATION ON REPRESENTATIONS OR WARRANTIES. Notwithstanding anything to the contrary
herein, neither PARTY will be in breach of any representation or warranty made pursuant to this
Section 8 to the extent that the PARTY alleged to have so breached can demonstrate that the PARTY
alleging such breach had, on or prior to the EFFECTIVE DATE, actual knowledge of such breach of
such representation or warranty.

     8.4 DISCLAIMER OF WARRANTY. EXCEPT FOR THE EXPRESS WARRANTIES SET FORTH IN SECTIONS 8.1 AND
8.2 NEITHER PARTY MAKES ANY REPRESENTATIONS AND GRANTS NO WARRANTIES, EXPRESS OR IMPLIED, EITHER IN
FACT OR BY OPERATION OF LAW, BY STATUTE OR OTHERWISE, AND ADVIRNA AND RXI EACH SPECIFICALLY
DISCLAIMS ANY OTHER REPRESENTATIONS AND WARRANTIES, WHETHER WRITTEN OR ORAL, EXPRESS, STATUTORY OR
IMPLIED, INCLUDING ANY WARRANTY OF QUALITY, MERCHANTABILITY OR FITNESS FOR A PARTICULAR USE OR
PURPOSE OR ANY WARRANTY AS TO THE VALIDITY OF ANY PATENT RIGHTS OR THE NON-INFRINGEMENT OF ANY
INTELLECTUAL PROPERTY RIGHTS OF THIRD PARTIES. EACH PARTY HEREBY DISCLAIMS ANY REPRESENTATION OR
WARRANTY THAT THE DEVELOPMENT, MANUFACTURE AND COMMERCIALIZATION OF A ROYALTY-BEARING PRODUCT
PURSUANT TO THIS AGREEMENT WILL BE SUCCESSFUL OR THAT ANY PARTICULAR SALES LEVEL WITH RESPECT TO
THE ROYALTY-BEARING PRODUCT WILL BE ACHIEVED.

     8.5 LIMITATION OF LIABILITY. IN NO EVENT WILL EITHER PARTY BE LIABLE FOR LOST PROFITS OR FOR
ANY SPECIAL, INDIRECT, INCIDENTAL, CONSEQUENTIAL OR PUNITIVE DAMAGES, HOWEVER CAUSED, ON ANY THEORY
OF LIABILITY AND WHETHER OR NOT SUCH PARTY HAS BEEN ADVISED OF THE POSSIBILITY OF SUCH DAMAGES,
ARISING UNDER ANY CAUSE OF ACTION AND ARISING IN ANY WAY OUT OF THIS AGREEMENT, EXCEPT AS A RESULT
OF A PARTY’S WILLFUL MISCONDUCT, GROSS NEGLIGENCE, RECKLESS CONDUCT OR A BREACH OF THE
CONFIDENTIALITY IN SECTION 9.

     8.6 Nothing in this AGREEMENT precludes RXi from contesting the validity of any PATENT RIGHTS.
In the event evidentiary material comes to the attention of RXi subsequent to RXi’s execution of
this AGREEMENT that, in the judgment of RXi, bears on the validity or scope of any PATENT RIGHTS,
ADVIRNA will in good faith discuss with RXi whether such evidentiary material so affects the
validity or scope of the PATENT RIGHTS to which it is asserted to apply that the terms of this
AGREEMENT in respect to such PATENT RIGHTS should be modified.

     8.7 In the event RXi intends to assert in any forum that any PATENT RIGHTS are invalid,
unenforceable, or unpatentable, RXi will, not less than ninety (90) days prior to making any such
assertion, provide to ADVIRNA a complete written disclosure of each and every basis then known to
RXi for such assertion and, with such disclosure, will provide ADVIRNA with a copy of any document
or

 

			
	[**]	=	Portions of this exhibit have been omitted pursuant to a confidential treatment request. An unredacted version of this exhibit has been filed separately with the Commission.

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publication upon which RXi intends to rely in support of such assertion. RXi’s failure to comply
with this provision will constitute a material breach of this AGREEMENT.

9.0 Confidential Information

     9.1 ADVIRNA, through INVENTOR, has disclosed all relevant CONFIDENTIAL INFORMATION as defined
in Section 9.2 below, other information, and data relating to PATENT RIGHTS and TECHNOLOGY RIGHTS
that enabled RXi to evaluate the potential commercial significance of the PATENT RIGHTS and
TECHNOLOGY RIGHTS.

     9.2 In addition to the initial disclosure described in Section 9.1, the disclosure of further
confidential information as of the date that INVENTOR became an employee of RXi is no longer
subject to this Section 9, but to confidentiality provisions of employment agreements entered into
by INVENTOR. All information (a) disclosed by ADVIRNA or INVENTOR whether disclosed initially or
at any time prior to the date of INVENTOR’s employment with RXi and (b) disclosed by RXi to ADVIRNA
whether disclosed prior to or during the term of this AGREEMENT will be referred to as
“CONFIDENTIAL INFORMATION.” Each PARTY will only use the other PARTY’s CONFIDENTIAL INFORMATION as
required for the performance of this AGREEMENT. Each PARTY will continue to use reasonable efforts
to prevent the disclosure of any of the other PARTY’s CONFIDENTIAL INFORMATION to third parties for
a period of three (3) years after the termination of this AGREEMENT, provided that the recipient
PARTY’s obligation will not apply to information that:

	 	(a)	 	was known to the receiving PARTY prior to its disclosure to the receiving PARTY by the
disclosing PARTY as evidenced by written documents predating the receiving PARTY’s receipt
of such CONFIDENTIAL INFORMATION;
	 
	 	(b)	 	is public knowledge at the time of its disclosure to the receiving PARTY or became
public knowledge after its disclosure to the receiving PARTY through no act or omission or
on its behalf;
	 
	 	(c)	 	is or later becomes published through no fault of the receiving PARTY;
	 
	 	(d)	 	is disclosed or made available to the receiving PARTY by a third party which, to the
receiving PARTY’s knowledge, had no direct or indirect obligation to the disclosing PARTY
to maintain the confidentiality of such CONFIDENTIAL INFORMATION at the time of such
disclosure to the receiving PARTY; or
	 
	 	(e)	 	is independently developed by the receiving PARTY without the aid or benefit of
CONFIDENTIAL INFORMATION disclosed to the receiving PARTY by the disclosing PARTY.

     9.3 In the event that information is required to be disclosed by court order, law or
regulation, the PARTY required to make disclosure will notify the other to allow that PARTY to
assert whatever exclusions or exemptions may be available to it under such law or regulation.

10.0 Termination

     10.1 This AGREEMENT will expire upon the expiration of the last to expire of the PATENT RIGHTS
included herein, or upon the abandonment of the last to be abandoned of any patents included
herein, whichever is later, unless this AGREEMENT is sooner terminated.

 

			
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     10.2 RXi may terminate this AGREEMENT at any time upon ninety (90) days written notice in
advance to ADVIRNA.

     10.3 ADVIRNA may terminate this AGREEMENT upon ninety (90) days’ prior written notice in the
event that RXi ceases using commercially reasonable efforts to research, develop, license or
otherwise commercialize the PATENT RIGHTS or ROYALTY-BEARING PRODUCTS, provided that RXi may refute
such claim within such ninety (90) day period by showing budgeted expenditures for the research,
development, licensing or other commercialization consistent with other technologies of similar
stage of development and commercial potential as the PATENT RIGHTS and ROYALTY-BEARING PRODUCTS.

     10.4 Either PARTY at any time may provide written notice to the other PARTY of a material
breach of this AGREEMENT. If the other PARTY fails to cure the identified breach within ninety (90)
days after the date of the notice, the aggrieved PARTY may terminate this AGREEMENT by written
notice to the PARTY in breach. This will not be an exclusive remedy, and either PARTY will be
entitled, if the circumstances warrant, alternatively or cumulatively, to damages for breach of
this AGREEMENT, to an order requiring performance of obligations of this AGREEMENT, or to any other
remedy available at law or equity.

     10.5 The word “termination” and cognate words, such as “term” and “terminate,” used in this
Section 10 and elsewhere in this AGREEMENT are to be read, except where the contrary is
specifically indicated, as omitting from their effect the following rights and obligations, all of
which will survive any termination to the degree necessary to permit their complete fulfillment or
discharge:

	 	(a)	 	RXi’s obligation to supply a terminal report as specified in Section 7.2 of this
AGREEMENT.
	 
	 	(b)	 	ADVIRNA’s right to receive or recover and RXi’s obligation to pay royalties accrued or
accruable for payment at the time of any termination.
	 
	 	(c)	 	Licenses, releases, and agreements of non-assertion running in favor of customers or
transferees of RXi in respect to products sold or transferred by RXi prior to any
termination and on which royalties were paid as provided in Section 4.3 of this AGREEMENT.
	 
	 	(d)	 	Any cause of action or claim of ADVIRNA accrued, or to accrue, because of any breach or
default by RXi.
	 
	 	(e)	 	The representation and disclaimer of warranties of Section 8.0.
	 
	 	(f)	 	The confidentiality provisions of Section 9.0.
	 
	 	(g)	 	The re-assignment of the PATENT RIGHTS and TECHNOLOGY RIGHTS to ADVIRNA as set forth in
Sections 4.2, 4.5 and 10.6.

     10.6 Following any expiration or termination of this AGREEMENT, no further payment shall be
payable to ADVIRNA pursuant to this Agreement, except for payments that accrued prior to such
termination or expiration. Upon termination under Sections 10.2 and 10.3, or for cause for failure
of payment of fees to ADVIRNA under Sections 4.0, 5.0 and 6.0, or expiration of this AGREEMENT in
accordance with its terms, RXi agrees to assign, transfer and convey to ADVIRNA all right, title
and interest in and to the PATENT RIGHTS and TECHNOLOGY RIGHTS.

11.0 Litigation

 

			
	[**]	=	 Portions of this exhibit have been omitted pursuant to a confidential treatment request. An unredacted version of this exhibit has been filed separately with the Commission.

8

 

     11.1 Each PARTY will notify the other PARTY in writing of any suspected infringement(s) of the
PATENT RIGHTS, TECHNOLOGY RIGHTS in the TERRITORY and will provide to the other PARTY any evidence
of such infringement(s).

     11.2 RXi has the right to institute suit for infringement(s) in the TERRITORY so long as this
AGREEMENT is in full force and effect. ADVIRNA agrees to join as a party plaintiff in any such
lawsuit initiated by RXi, if requested by RXi, with all costs, attorneys’ fees, and expenses to be
paid by RXi.

     11.3 RXi will be entitled to any recovery of damages resulting from a lawsuit brought by it
pursuant to Section 11.2.

     11.4 RXi may not settle with an infringer without the prior approval of ADVIRNA if such
settlement would affect the rights of ADVIRNA under the PATENT RIGHTS and TECHNOLOGY RIGHTS, which
approval will not be unreasonably withheld or delayed.

12.0 Indemnification

     12.1 RXi will hold ADVIRNA harmless against all liabilities, demands, damages,
expenses, or losses arising (1) out of use by RXi or its transferees (other than ADVIRNA) of
inventions licensed or information furnished under this AGREEMENT, or (2) out of any use, sale, or
other disposition by RXi or its transferees (other than ADVIRNA) of products made by use of such
inventions or information.

13.0 General Provisions

     13.1 This AGREEMENT may not be assigned by RXi without the prior written consent of ADVIRNA,
which consent may not unreasonably be withheld or delayed. However, RXi may assign any and all of
the rights granted to it pursuant to this AGREEMENT to a successor of all or substantially all of
its business to which this AGREEMENT relates without the approval from or prior notice to ADVIRNA.
This AGREEMENT shall be binding upon and inure to the benefit of the PARTIES and their respective
successors and permitted assigns.

     13.2 This AGREEMENT constitutes the entire and only agreement between the PARTIES, and all
prior negotiations, representations, agreements, options and understandings are superseded hereby.
No agreements altering or supplementing the terms hereof may be made except by written mutual
agreement by the PARTIES.

     13.3 The relationship between ADVIRNA and RXi is that of independent contractors. ADVIRNA and
RXi are not joint venturers, partners, principal and agent, master and servant, employer or
employee, and have no other relationship other than independent contracting parties. ADVIRNA will
have no power to bind or obligate RXi in any manner, other than as is expressly set forth in this
AGREEMENT. Likewise RXi will have no power to bind or obligate ADVIRNA in any manner, other than
as is expressly set forth in this AGREEMENT.

     13.4 If any provision of this AGREEMENT is ultimately held to be invalid, illegal or
unenforceable, the validity, legality and enforceability of the remaining provisions will not in
any way be affected or impaired thereby.

 

			
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9

 

     13.5 Any delay in enforcing a PARTY’s right under this AGREEMENT or any waiver as to a
particular default or other matter will not constitute a waiver of such PARTY’s rights to the
future enforcement of its rights under this AGREEMENT, except only as to an express written and
signed waiver to a specific matter for a specific period of time.

     13.6 Any notice required by this AGREEMENT will be given by personal delivery (including
delivery by reputable messenger services such as Federal Express) or by prepaid, first class,
certified mail, return receipt requested, addressed to:

ATTENTION:

ADVIRNA, LLC

4550 Squires

Boulder, CO 80305

or in the case of RXi to:

President and CEO

RXi Pharmaceuticals Corporation

60 Prescott St.

Worcester, MA 01605

or at such other addresses as may be given from time to time in accordance with the terms of this
notice provision.

     13.7 This AGREEMENT will be governed by, construed, and enforced in accordance with the
internal laws of the Commonwealth of Massachusetts, without regard to conflict of law principles
that would result in the application of the domestic substantive law of any other jurisdiction
other than U.S. federal law, in regard to any question affecting the construction or effect of any
patent.

     13.8 If RXi elects arbitration, the arbitration shall be conducted in Massachusetts, by one
(1) independent arbitrator who is experienced in licensing biotechnology intellectual property. The
arbitrator shall be chosen by mutual consent of the PARTIES within thirty (30) days after RXi
elects arbitration and pays the fees of the arbitrator.

     13.9 In publicizing anything made, used, offered for sale, sold, or imported under this
AGREEMENT, RXi may use the name of ADVIRNA or otherwise refer to any organization related to
ADVIRNA, after obtaining written approval of ADVIRNA, which will not be unreasonably withheld or
delayed.

     13.10 RXi must place in a conspicuous location on ROYALTY-BEARING PRODUCT a patent notice in
accordance with 35 U.S.C. §287. RXi agrees to mark any products made using a process covered by
any PATENT RIGHTS or TECHNOLOGY RIGHTS with the number of each such patent and, with respect to
such PATENT RIGHTS and, to respond to any request for disclosure under 35 U.S.C. §287(b)(4)(B).

 

			
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10

 

     IN WITNESS WHEREOF, the PARTIES have caused this AGREEMENT to be executed by their duly authorized
representatives.

ADVIRNA, LLC

	 	 	 	 	 
	By:
	 	 	 	 
	Name:

	 	 

	 	 
	Its:

	 	 

	 	 
	Date:

	 	 

	 	 
	 

	 	 

	 	 

RXI PHARMACEUTICALS CORPORATION

	 	 	 	 	 
	By:
	 	 	 	 
	Name:

	 	 

	 	 
	Its:

	 	 

	 	 
	Date:

	 	 

	 	 
	 

	 	 

	 	 

 

			
	[**]	=	 Portions of this exhibit have been omitted pursuant to a confidential treatment request. An unredacted version of this exhibit has been filed separately with the Commission.

11

 

Exhibit A

ASSIGNMENT OF PATENT APPLICATION

     WHEREAS, ADVIRNA, LLC, a Colorado limited liability company, with its principal place of business
at 4550 Squires, Boulder, CO 80305 (“Assignor”) is the owner of the following United States patent
application, including but not limited to all international, provisional and other types of
applications related or claiming thereto (collectively, the “Patent Applications”):

	 	 	 	 	 
	Title	 	Number	 	Filing Date
	[**]
	 	[**]
	 	[**]

          WHEREAS, Assignor is desirous of transferring the entire and exclusive right, title and
interest in and to the inventions disclosed in said Patent Applications (the “Inventions”) in the
United States and throughout the world, and in and to any Letters Patent which may be granted and
issued therefor to RXi Pharmaceuticals Corporation, a Delaware corporation with its principal place
of business at 60 Prescott St., Worcester, MA 01605 (“Assignee”);

          NOW, THEREFORE, in consideration of the foregoing recitals and other good and valuable
consideration the receipt and adequacy of which are hereby acknowledged, the parties hereby agree
as follows:

          1. Assignment. Assignor hereby assigns, transfers and conveys to Assignee all of
Assignor’s rights, titles, and interests throughout the world in and to said Patent Applications,
the Inventions, and any and all Letters Patent whether U.S. or foreign that are or may be granted
therefrom, including, without limitation, any extensions, continuations, continuations-in-part,
divisions, reissues, reregistrations, reexaminations and renewals thereof, or other equivalents
thereof (collectively, the “Assigned Patent Applications”), and further, all rights and privileges
pertaining to the Assigned Patent Applications, including, without limitation, the right, if any,
to sue or bring and recover for, and the right to profits or damages due or accrued, arising out of
or in connection with, any and all actions for past, present and future infringement thereof.

          2. Further Assignment. Assignor further assigns to and empowers Assignee, their
successors, assigns or nominees, all rights to make applications for patents or other forms of
protection for said Inventions and to prosecute such applications and the Assigned Patent
Applications, as well as to claim and receive the benefit of the right of priority provided by the
International Convention for the Protection of Industrial Property, as amended, or by any
convention which may henceforth be substituted for it, and the right to invoke and claim such right
of priority without further written or oral authorization.

          3. Authorization of Patent and Trademark Office to Record. Assignor further agrees
that this assignment shall be deemed a full legal and formal equivalent of any assignment, consent
to file or like document which may be required in any country for any purpose regarding the subject
matter hereof, as well as constituting proof of the right of Assignee or its successors, assigns or
nominees

 

			
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12

 

to apply for patent or other proper protection for said Inventions, and to claim the aforesaid
benefits of the right of priority provided by the International Convention for the Protection of
Industrial Property, as amended, or by any convention which may henceforth be substituted for it.

          4. Further Assurances. Assignor agrees to take such further action and to execute
such documents as Assignee may reasonably request to effect or confirm the conveyance to Assignee
of the Patent Applications and any improvements thereunder.

          IN WITNESS WHEREOF, the parties hereto have executed this Assignment of Patent Application as
of the last day indicated below.

	 	 	 	 	 
	 	 	ADVIRNA, LLC
	 
	 	 	 	 
	 

	 	By:	 	 
	 

	 	 	 	 
	 

	 	Printed Name:	 	 
	 

	 	 	 	 
	 

	 	Date:	 	 
	 

	 	 	 	 

          The foregoing Assignment of Patent Application thereof by the Assignor to the Assignee is
hereby accepted as of the 21st day of September 2009.

	 	 	 	 	 
	 	 	RXI PHARMACEUTICALS CORPORATION
	 
	 	 	 	 
	 

	 	By:	 	 
	 

	 	 	 	 
	 

	 	Printed Name:	 	 
	 

	 	 	 	 
	 

	 	Date:	 	 
	 

	 	 	 	 

 

			
	[**]	=	Portions of this exhibit have been omitted pursuant to a confidential treatment request. An unredacted version of this exhibit has been filed separately with the Commission.

13

 

Exhibit B

SECURITY AGREEMENT

     This Security Agreement (“Agreement”) dated the 21st day of September, 2009, is by and between
ADVIRNA, LLC, a Colorado limited liability company having its principal place of business at 4550
Squires, Boulder, CO 80305 (“ADVIRNA”), and RXi Pharmaceuticals Corporation, a Delaware
corporation, having its principal place of business at 60 Prescott Street, Worcester, MA 01605
(“RXi”).

RECITALS

     A. ADVIRNA and RXi are parties to a Patent and Technology Assignment Agreement dated the 21st
day of September, 2009, as it may be amended from time to time (hereinafter referred to
collectively as the “Assignment Agreement”);

     B. Pursuant to the Assignment Agreement, ADVIRNA has assigned to RXi certain Patent Rights and
Technology Rights as defined in the Assignment Agreement (herein called the “Collateral”);

     C. Pursuant to the terms of the Assignment Agreement, RXi has granted to ADVIRNA a security
interest in the Patent Rights and Technology Rights, subject to no other security interests except
those created in accordance with any subordination to which ADVIRNA agrees in writing; and

     D. All capitalized terms not defined herein shall have the meanings set forth in the
Assignment Agreement.

          NOW, THEREFORE, in consideration of the premises contained herein, RXi and ADVIRNA agree as
follows:

          1. To secure the complete and timely satisfaction of the obligations of RXi pursuant to the
Assignment Agreement solely as to (i) payment of any sales-based payments as the same become due
and payable in accordance with Section 4.3 of the Assignment Agreement and applicable law (and
subject to the caps, limitations and exceptions specified therein, or elsewhere in the Assignment
Agreement); (ii) payment of any licensing-based payments as the same become due and payable in
accordance with Section 6.3 of the Assignment Agreement and applicable law (and subject to any
exceptions specified therein or elsewhere in the Assignment Agreement) and (iii) payment of any
milestone payments as the same become due and payable in accordance with Sections 4.1, 4.2 and 5.1
of the Assignment Agreement and applicable law (and subject to any exceptions specified therein or
elsewhere in the Assignment Agreement) (the “Secured Obligations”), RXi hereby grants, assigns and
conveys to ADVIRNA a continuing security interest in and lien on all of RXi’s right, title and
interest in the Collateral. Nothing herein shall be deemed to create any other security interest
in any other asset of RXi, and without limiting the generality of the foregoing, ADVIRNA shall have
no security interest in any other intellectual property rights of RXi.

          2. ADVIRNA is authorized to file at any time financing statements, continuation statements,
and amendments thereto, including, but not limited to, filings with the United States Patent and
Trademark Office or any other governmental agency, it deems necessary or desirable in order to
secure and perfect its rights under this Agreement or the Assignment Agreement, provided that any
such

 

			
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14

 

filings shall make it clear in a manner reasonably satisfactory to RXi that the scope of the
Collateral is limited to such particular numbered patent(s), patent application(s) and related
technology rights so assigned to it by ADVIRNA pursuant to the Assignment Agreement. RXi
authorizes and requests that Commissioner of Patents and Trademarks record this Agreement, or a
copy thereof.

          3. If a breach of RXi’s Secured Obligations shall have occurred and be continuing beyond the
time period (if any) provided to cure such breach in the Assignment Agreement, or, if none or a
shorter period is stated in the Assignment Agreement, then sixty (60) days after written notice of
such breach is received from ADVIRNA, during which RXi shall be entitled to cure such breach, or if
any proceeding is commenced by or against RXi under any provision of the United States Bankruptcy
Code, as amended, or any other bankruptcy or insolvency law (collectively, an “Event of Default”),
ADVIRNA shall have, in addition to all other rights and remedies given it by this Agreement or the
Assignment Agreement, those allowed by law and the rights and remedies of a secured party under the
Uniform Commercial Code (“UCC”) as enacted in any jurisdiction in which either the Collateral may
be located or is otherwise applicable.

          4. Without the prior written consent of ADVIRNA, which will not be unreasonably withheld,
conditioned or delayed, RXi covenants after any Event of Default not to surrender or lose
possession of, sell, encumber, rent, license, transfer or otherwise dispose of the Patent Rights,
Technology Rights or an interest therein, except as expressly permitted in herein or in the
Assignment Agreement. Prior to any Event of Default, RXi may license or otherwise deal with the
Collateral in any manner that it wishes, as long as any transfer or disposition is subject to
ADVIRNA’s security interest. In addition, the security interest granted herein by RXi in favor of
ADVIRNA shall be at all times subject and subordinate to any bona fide license, sublicense or other
contract not creating any lien or security interest made by RXi in favor of any affiliated or
nonaffiliated party at any time prior to any uncured Event of Default notice issued by ADVIRNA in
accordance with this Agreement. ADVIRNA shall promptly execute any subordination agreement as may
be reasonably requested by any such third party beneficiary of this provision in order to confirm
or further evidence such subordination hereunder.

          5. RXi hereby authorizes and empowers ADVIRNA to make, constitute and appoint any officer or
agent of ADVIRNA, as ADVIRNA may select in its exclusive discretion, as RXi’s true and lawful
attorney-in-fact, with the power solely exercised in accordance with the requirements of the UCC
and other applicable law, after an Event of Default, to endorse RXi’s name on all applications,
documents, papers and instruments necessary or desirable for ADVIRNA to use the Patent Rights and
Technology Rights, or to grant or issue any exclusive or nonexclusive license under the Collateral
to any third person, or necessary or desirable for ADVIRNA to assign, pledge, convey or otherwise
transfer title in or dispose of the Collateral to any third person. RXi hereby ratifies all that
such attorney shall lawfully do or cause to be done by virtue hereof in compliance with this
Agreement and the Assignment Agreement and applicable law. This power of attorney being coupled
with an interest shall be irrevocable for the life of this Agreement.

          6. RXi shall have the right, with the consent of ADVIRNA, which shall not be unreasonably
withheld, conditioned or delayed, to bring suit in its own name, and to join ADVIRNA, if necessary,
as a party to such suit so long as ADVIRNA is satisfied that such joinder will not subject it to
any risk of liability, to enforce the rights related to the Patent Rights and Technology Rights.

          7. At such time as RXi shall completely satisfy all of the Secured Obligations, ADVIRNA shall
execute and deliver to RXi all releases, terminations, and other instruments as may be

 

			
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15

 

necessary or proper to release the security interest hereunder.

          8. No course of dealing between RXi and ADVIRNA, nor any failure to exercise, nor any delay in
exercising, on the part of ADVIRNA, any right, power or privilege hereunder or under the Assignment
Agreement shall operate as a waiver thereof; nor shall any single or partial exercise of any right,
power or privilege hereunder or thereunder preclude any other or further exercise thereof or the
exercise of any other right, power or privilege.

          9. All of ADVIRNA’s rights and remedies with respect to the Collateral, whether established
hereby, the Assignment Agreement, any other agreements or by law shall be cumulative and may be
exercised singularly or concurrently.

          10. The provisions of this Agreement are severable, and if any clause or provision shall be
held invalid and unenforceable in whole or in part in any jurisdiction, then such provision shall
be ineffective only to the extent and duration of such prohibition or invalidity, without
invalidating the remainder of such provision or the remaining provisions of this Agreement.

          11. This Agreement is subject to modification only by a writing signed by both parties.

          12. The validity and interpretation of this Agreement and the rights and obligations of the
parties shall be governed by the laws of the Commonwealth of Massachusetts, excluding conflict of
laws principles that would cause the application of laws of any other jurisdiction. To the extent
the provisions of the Uniform Commercial Code govern any aspect of this Agreement, the Uniform
Commercial Code as the same is, from time to time, in effect in the Commonwealth of Massachusetts
shall govern; provided, that in the event that, by reason of mandatory provisions of law, any or
all of the attachment, perfection or priority of, or remedies with respect to, the security
interest granted on the Patent Rights and Technology Rights is required to be governed by the
Uniform Commercial Code as the same is, from time to time, in effect in a jurisdiction other than
the Commonwealth of Massachusetts, then such jurisdiction’s Uniform Commercial Code, as in effect,
from time to time, shall govern only to the extent required by applicable law.

          13. All judicial proceedings arising in or under or related to this Agreement may be brought
in any state or federal court of competent jurisdiction located in the Commonwealth of
Massachusetts.

[remainder of page intentionally left blank]

 

			
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16

 

     WITNESS the execution hereof under seal as of the day and year first above written.

	 	 	 	 	 
	 	 	RXI PHARMACEUTICALS CORPORATION
	 
	 	 	 	 
	 

	 	By:	 	 
	 

	 	 	 	 
	 

	 	Name:	 	 
	 

	 	 	 	 
	 

	 	Title:	 	 
	 

	 	 	 	 
	 
	 	 	 	 
	 	 	ADVIRNA, LLC
	 
	 	 	 	 
	 

	 	By:	 	 
	 

	 	 	 	 
	 

	 	Name:	 	 
	 

	 	 	 	 
	 

	 	Title:	 	 
	 

	 	 	 	 

 

			
	[**]	=	Portions of this exhibit have been omitted pursuant to a confidential treatment request. An unredacted version of this exhibit has been filed separately with the Commission.

17

 

Exhibit C

LICENSE BACK TERMS

     [**]

 

			
	[**]	=	 Portions of this exhibit have been omitted pursuant to a confidential treatment request. An unredacted version of this exhibit has been filed separately with the Commission.

18

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