`
`BEFORE THE PATENT TRIAL AND APPEAL BOARD
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`PPHGENIX, INC.
`Petitioner
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`IMMUNOGEN, INC.
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`Patent Owner
`
`Case IPR2014-00676
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`Patent 8,337,856 B2
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`PHIGENIX, INC.’S UPDATED POWER OF ATTORNEY
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`Mail Stop "PATENT BOARD"
`Patent Trial and Appeal Board
`U.S. Patent and Trademark Office
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`P.O. Box 1450
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`Alexandria, VA 22313-1450
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`
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`PHIGENIX, INC.’S UPDATED POWER OF ATTORNEY
`CASE IPR2014-00676
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`Pursuant to 37 C.F.R. § 42.10(b), Petitioner, Phigenix, Inc. hereby appoints
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`the practitioners listed in the power of attorney attached hereto in Appendix A as
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`additional counsel to transact all business in the United States Patent &Trademark
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`Office associated with the inter partes review of U.S. Patent No. 8,337,856.
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`Ping Wang (Reg. No. 48,328) remains lead counsel for Phigenix Inc., and
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`Gregory Porter (Reg. No. 40,131) remains the primary back-up counsel.
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`ANDREWS KURTH, LLP
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`
`
`
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`Gregory P rter
`Attorney for Petitioner
`Phigenix, Inc.
`Registration No. 40,131
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`Date: June 30, 2015
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`600 Travis, Suite 4200
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`Houston, TX77002
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`(713) 220-4621
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`
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`PHIGENIX, INC.’S UPDATED POWER OF ATTORNEY
`CASE IPR2014-00676
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`CERTIFICATE OF SERVICE (37 C.F.R. § 42.6§e))
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`The undersigned hereby certifies that the above-captioned “Phigenix Inc.’s
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`Updated Power of Attorney” was served Via electronic mail upon the following
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`parties:
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`Eldora L. Ellison, Ph.D.
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`Sterne, Kessler, Goldstein & Fox P.L.L.C.
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`1100 New York AVe., N.W.
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`Washington, D.C. 20005-3934
`Tel: (202) 772-8508
`Fax: (202) 371-2540
`eellison@skgf.com
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`Eric K. Steffe
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`Sterne, Kessler, Goldstein & Fox P.L.L.C.
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`1 100 New York AVe., N.W.
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`Washington, D.C. 20005-3934
`Tel: (202) 772-8625
`Fax: (202) 371-2540
`esteffe@skgf.com
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`Date: June 30, 2015
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`600 Travis, Suite 4200
`
`Houston, TX77002
`
`(713) 220-4621
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`ANDREWS KURTH, LLP
`
`
`
`Gregory Po er
`Attorney for Petitioner
`Phigenix, Inc.
`Registration No. 40,131
`
`
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`PHIGENIX, INC.’S UPDATED POWER OF ATTORNEY
`CASE IPR2014-00676
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`APPENDIX A
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`PHIGENIX INC.’S UPDATED POWER OF
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`ATTORNEY
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`
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`IN THE UNITED STATES PATENT AND TRADEMARK OFFICE
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`In the Inter Partes Review No. IPR2014-00676 Of:
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`U.S. Patent No.: 8,337,856
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`Issue Date: December 25, 2012
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`Appl. Serial No.: 11/949,351
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`Filing Date: December 3, 2007
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`Title: METHODS OF TREATMENT USING ANTI-ERBB ANTIBODY-MAYTANSIONOID
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`CONJUGATES
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`PETITIONER’S POWER OF ATTORNEY IN
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`INTER PARTES REVIEW NO. IPR2014-00676
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`Petitioner, Phigenix, Inc., hereby appoints the following practitioner as an attorney to
`transact all business in the United States Patent & Trademark Office associated with the above-
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`captioned Inter Partes Review.
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`BACK-UP COUNSEL
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`John Murray, Ph.D., Esq. Reg. No. 61,497
`Andrews Kurth, LLP
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`1350 I Street NW, Suite 1100
`Washington, D.C. 20005
`Phone No. (202) 662-3075
`Fax No. 202.974.9523
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`Email: JohnMurray@andrewskurth.com
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`The individual signing below has the authority to execute this document on behalf of
`Petitioner Phigenix, Inc.
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`Petitioner Phigenix, Inc.
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`
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`Name: Carlton D. Donald, Ph.D.
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`Title: President and CEO
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`D3163 £36 £5 /:5.