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`Paper No. 4
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`UNITED STATES PATENT AND TRADEMARK OFFICE
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`______________________
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`BEFORE THE PATENT TRIAL AND APPEAL BOARD
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`______________________
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`HUAWEI DEVICE CO., LTD.
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`Petitioner
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`v.
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`OPTIS CELLULAR TECHNOLOGY, LLC
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`Patent Owner
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`______________________
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`Case IPR2018-00807
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`Patent 8,102,833 B2
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`______________________
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`PATENT OWNER’S POWER OF ATTORNEY
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`POWER OF ATTORNEY
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`Pursuant to 37 CPR. § 42.10, Patent Owner Optis Cellular Technology,
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`LLC, hereby appoints the practitioners associated with Nelson Bumgardner
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`Albritton P.C., including, but not limited to, Brent N. Bumgardner and Matthew C.
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`Juren, to transact all business in the United States Patent & Trademark Office
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`associated with Inter Partes review IPR2018—00807 and IPR2018-00816.
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`Lead Counsel
`Brent N. Bumgardner
`Registration No. 48,476
`NELSON BUMGARDNER
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`Back—Up Counsel
`Matthew C. Juren
`Registration No. 68,233
`NELSON BUMGARDNER
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`ALBRITTON RC.
`ALBRITTON P.C.
`3131 W. 7th Street, Suite 300
`3131 W. 7th Street, Suite 300
`Fort Worth, Texas 76107
`Fort Worth, Texas 76107
`Telephone: (817)—806-3816
`Telephone: (817)-377—3490
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`Email: brent nbafirm.com
`Email: matthew nbafirm.com
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` Dated: April 11, 2018
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`C Richard
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`Byzt
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`Signed with authority on behalf of
`Optis Cellular Technology, LLC
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