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`BEFORE THE PATENT TRIAL AND APPEAL BOARD
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`T-MOBILE USA, INC., T-MOBILE US, INC, SPRINT SPECTRUM LP,
`and SPRINTCOM, INC.
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`Petitioner
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`V.
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`INTELLECTUAL VENTURES II LLC
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`Patent Owner
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`Case IPR2018—01773
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`U.S. Patent No. 8,897,828
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`PATENT OWNER’S POWER OF ATTORNEY
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`Mail Stop “PA TENT BOARD”
`Patent Trial and Appeal Board
`U.S. Patent and Trademark Office
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`P.O. Box 1450
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`Alexandria, VA 22313-1450
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`
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`Case lPR2018—01773
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`US. Patent No. 8,897,828
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`Pursuant to 37 C.F.R. § 42.10(b), Patent Owner Intellectual Ventures ll LLC
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`hereby appoints the practitioners of Customer No. 261 1 1 as its attorneys to transact
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`all business in the United States Patent & Trademark Office and Patent Trial and
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`Appeal Board associated with the above-captioned inter partes review. These
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`practitioners include at least:
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`Byron L. Pickard (Registration No. 65,172) (Lead Counsel)
`Daniel S. Block (Registration No. 68,395) (Back—up Counsel)
`Tyler J. Dutton (Registration No. 75,069) (Back-up Counsel)
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`Counsel’s Address:
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`STERNE, KESSLER, GOLDSTEIN & Fox P.L.L.C.
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`l 100 New York Avenue, NW
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`Washington, DC 20005
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`202.371.2600 (reception)
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`202.371.2540 (facsimile)
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`FOR: Intellectual Ventures ll LLC
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`SIGNATURE: /Z, § é,
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`3%ng—
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`TITLE: Assistant Company Secretary
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`DATE:
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`10 [3H8
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`-—
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`