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`BEFORE THE PATENT TRIAL AND APPEAL BOARD
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`PETROLEUM GEO-SERVICES INC.,
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`Petitioner,
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`v.
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`WESTERNGECO L.L.C.,
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`Patent Owner.
`______________
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`Case IPR2014-01478
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`U.S. Patent No. 7,293,520
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`PATENT OWNER WESTERNGECO L.L.C.’S UPDATED
`POWER OF ATTORNEY PURSUANT TO 37 C.F.R. § 42.10(b)
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`Mail Stop "PATENT BOARD"
`Patent Trial and Appeal Board
`U.S. Patent and Trademark Office
`P.O. Box 1450
`Alexandria, VA 22313-1450
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`Patent Owner’s Updated Power of Attorney
`Case IPR20l4-01478
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`U.S. Patent 7,293,520
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`PATENT OWNER POWER OF ATTORNEY
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`I I hereby appoint Practitioner(s) associated with the following Customer Number as my/our
`attorney(s) or agent(s), and to transact all business in the Patent Trial & Appeal Board of the
`United States Patent and Trademark Office connected therewith for the Inter Partes
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`Review (IPR20l4-01478) of U.S. Patent No. 7,293,520.
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`22850
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`I am the Vie Presi:
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`A
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`A
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`I WESTERNGECO L.L.C. Patent Owner in this Inter Partes Review.
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`SIGNATURE of Patent Owner
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`Signature
`Name
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`I
`Rorygii. Hokanson
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`‘:t§I;3.G;’§”‘
`l
`Date
`Telephone l 713—689-23 14
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`Title anopn g Vic idnt Geo.L.C
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`NOTE: Signature — This form must be signed in accordance with 37 CFR l.33. See 37 CFR 1.4 for
`signature requirements and certifications. Submit multiple forms for more than one signature, see
`below*.
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`I *Total of
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`1
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`forms are submitted.
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`Patent Owner’s Updated Power of Attorney
`Case IPR2014-01478
`U.S. Patent 7,293,520
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`CERTIFICATE OF SERVICE
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`Pursuant to 37 C.F.R. § 42.6(e), the undersigned certifies service of Patent
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`Owner WesternGeco, L.L.C.’s Updated Power of Attorney Under 37 C.F.R. §
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`42.10(b) on the counsel of record for the Petitioner by filing this document through
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`the Patent Review Processing System as well as delivering a copy via electronic
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`mail to the following address:
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`David Berl
`Christopher Suarez
`Williams & Connolly, LLP
`725 Twelfth Street, N.W.
`Washington, D.C. 20005
`dberl@wc.com
`csuarez@wc.com
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`Respectfully Submitted,
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`
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`/Michael L. Kiklis/
`Michael L. Kiklis (Reg. No. 38,939)
`Attorney for Patent Owner,
`WESTERNGECO, L.L.C.
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`Date: April 6, 2015