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`BEFORE THE PATENT TRIAL AND APPEAL BOARD
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`Huawei Device Co., Ltd,
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`Petitioner,
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`Optis Cellular Technology, LLC,
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`Patent Owner.
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`Case No. To Be Assigned
`Patent No. 8,102,833 B2
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`POWER OF ATTORNEY FOR PETITION ER
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`Ping Guo
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`President
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`March 16, 2018
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`CERTIFICATE OF SERVICE
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`I hereby certify, pursuant to 37 C.F.R. § 42.6, that a complete copy of the
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`attached Power of Attorney from Petitioner Huawei Device Co., Ltd. was served by
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`FedEx on the 21th day of March 2018, the same day as the filing of the above-
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`identified document in the United States Patent and Trademark Office/Patent Trial
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`and Appeal Board, upon the Patent Owner by serving the correspondence address of
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`record with the USPTO as follows:
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`NIXON & VANDERHYE, PC
`901 NORTH GLEBE ROAD, 11TH FLOOR
`ARLINGTON VA 22203
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`Petitioner is also serving courtesy copies of the same documents in the same manner
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`upon counsel for the Patent Owner in the litigation pending before the U.S. District
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`Court for the Eastern District of Texas entitled Optis Wireless Tech., LLC, et al. v.
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`Huawei Techs. Co. Ltd., et al.., Case No. 2:17-cv-00123-JRG-RSP as follows:
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`Kevin L. Burgess
`McKOOL SMITH, PC
`300 W. 6th Street, Suite 1700
`Austin, TX 78701
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`Date: March 21, 2018
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`/Peter P. Chen/
`Peter P. Chen
`Registration No. 39,631
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