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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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`WESTERNGECO LLC
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`Patent Owner
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`Case No. IPR20 14-00689
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`Patent No. 7,293,520
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`PETITIONER’S (UPDATED) POWER OF ATTORNEY PURSUANT TO 37
`CFR § 42.10(b) FOR PETITION FOR INTER PARTES REVIEW
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`Petitioner hereby appoints the following Practitioners as its attorneys to
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`prosecute and to transact all business in the Patent Trial & Appeal Board of the
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`United States Patent and Tradeinark Office connected with the above-identified
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`petition for Imfer Partes review.
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`Please direct all communication regarding this Petition to:
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`David Berl (Lead Counsel)
`Williams & Connolly LLP
`725 Twelfth St., NW
`Washington, DC 20005
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`Phone: 202-434-5491
`Fax: 202-434-5029
`Email: dberl@wc.com
`USPTO Reg. No.: 72,751
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`Christopher A. Suarez (Back-up Counsel)
`Williams & Connolly LLP
`725 Twelfth St., NW
`Washington, DC 20005
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`Phone: 202-434-5279
`Fax: 202-434-5029
`Email: csuarez@wc.com
`USPTO Reg. No.: 72,553
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`The undersigned is authorized to sign this Power of Attorney on behalf of the
`Petitioner. Executed at _ on the
`[7745
`day of August, 2014.
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`Petroleum G o-Services In .
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`Printed Name: Kevin Hart
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`USPTO Reg. No.: 36,823
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`Title: Chief Intellectual Property Counsel