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`UNITED STATES PATENT AND TRADEMARK OFFICE
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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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`POWER OF ATTORNEY
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`Pursuant to 37 C.F.R. § 42.10 (b), Petitioner, T-Mobile, USA, Inc., hereby
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`appoints all practitioners associated with Alston & Bird LLP, Customer Number
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`00826, including the following lead and backup counsel, as its attorneys to transact
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`all business in the United States Patent and Trademark Office associated with any
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`inter partes reviews of U.S. Patent No. 8,891,347; U.S. Patent No. 10,368,361; U.S.
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`Patent No. 9,094,888; and U.S. Patent No. 8,554,196.
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`1
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`Lead Counsel
`John D. Haynes (Reg.
`No. 44,754)
`ALSTON & BIRD LLP
`One Atlantic Center
`1201 West Peachtree
`Street
`Atlanta, GA 30309
`John.Haynes@alston.com
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`Backup Lead Counsel
`David First (Reg. No 60,511)
`Alston & Bird LLP
`One Atlantic Center
`1201 West Peachtree Street NW
`Atlanta, GA 30309
`David. Frist@alston.com
`404-881-7000
`Fax: 404-881-7777
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`Michael C. Deane (Reg. No.
`70,389)
`Alston & Bird LLP
`One Atlantic Center
`1201 West Peachtree Street NW
`Atlanta, GA 30309
`Michael.Deane@alston.com
`404-881-4943
`Fax: 404-881-7777
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`The undersigned has the authority to act on behalf of Petitioner, T-Mobile
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`USA, Inc.
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`Dated: November 16, 2023
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`T-Mobile USA, Inc.
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`Signature: _________________________
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`Name: Sarah J. Kalemeris
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`Title: Senior Corporate Counsel- Corporate Intellectual Property and IP Litigation
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`2
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`Sarah J. Kalemeris
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`Sarah J. Kalemeris (Nov 16, 2023 08:39 PST)
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