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`IN THE UNITED STATES PATENT AND TRADEMARK OFFICE
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`In re Patent of: Hays et al.
`U.S. Patent No.: 5,659,891
`Issue Date:
`Aug. 19, 1997
`Appl. Serial No.: 08/480,718
`Filing Date:
`Jun. 7, 1995
`Title:
`MULTICARRIER TECHNIQUES IN BANDLIMITED
`CHANNELS
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`Attorney Docket No.: 01048-21IP891
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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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`PETITIONERS’ POWER OF ATTORNEY IN POST GRANT PROCEEDINGS
`BEFORE THE PATENT TRIAL AND APPEAL BOARD
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`Petitioner, T-Mobile USA, Inc. and T-Mobile US, Inc., hereby appoints the following
`practitioners as its attorneys to transact all business in the United States Patent & Trademark
`Office associated with any inter partes review, covered business method review, post grant
`review, or other review proceedings before the Patent Trial and Appeal Board of the above-
`captioned patent:
`Pierre J. Hubert, Reg. No. 45,826
`Steven J. Pollinger, Reg. No. 35,326
`and all practitioners associated with PTO Customer Number 127134.
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` have the authority to execute this document on behalf of T-Mobile USA, Inc. and T-Mobile
`US, Inc.
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`T-Mobile USA, Inc. and T-Mobile US, Inc.
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`By:
`Name:
`Title:
`Date:
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`/Pierre J. Hubert/
`Pierre J. Hubert
`Litigation Counsel
`October 3, 2014
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`CERTIFICATE OF SERVICE
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`Pursuant to 37 CFR §§ 42.6(e)(1) and 42.6(e)(4)(iii), the undersigned
`certifies that on October 3, 2014, a complete and entire copy of this Power of
`Attorney under 37 C.F.R. § 42.10(b) was provided via FedEx® to the Patent Owner
`by serving the correspondence address of record as follows:
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`John R. Kasha
`Kasha Law LLC
`14532 Dufief Mill Rd.
`North Potomac, MD 20878
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`/Pierre J. Hubert/
`Pierre J. Hubert
`MCKOOL SMITH, P.C.
`300 W. 6th Street, Suite 1700
`Austin, Texas 78701
`Telephone: (512) 692-8700
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