`
`BEFORE THE PATENT TRIAL AND APPEAL BOARD
`
`SPRINT SPECTRUM L.P., SPRINTCOM, INC., T-MOBILE USA, INC., and T-
`MOBILE US, INC.
`Petitioners
`
`V.
`
`INTELLECTUAL VENTURES II LLC
`
`Patent Owner
`
`
`
`US. Patent No. 8,682,357
`US. Patent No. 8,897,828
`US. Patent No. 8,953,641
`US. Patent No. 9,320,018
`US. Patent No. 9,532,330
`US. Patent No. 9,681,466
`
`
`SPRINT SPECTRUM L.P. AND SPRINTCOM, INC.’S POWER OF
`ATTORNEY
`
`Petitioners Sprint Spectrum LP. and SprintCom, Inc. (collectively, “Sprint”)
`
`hereby appoint the following practitioners as their attorneys/agents to transact all
`
`business in the United States Patent & Trademark Office associated with the inter
`
`partes reviews of US. Patent Nos. 8,682,357, 8,897,828, 8,953,641, 9,320,018,
`
`9,532,330, and 9,681,466:
`
`
`
`Robert C. Hilton (Reg. No. 47,649)
`rhilton@mcguirewoods.com
`MCGUIREWOODS LLP
`
`2000 McKinney Ave., Suite 1400
`Dallas, TX 75201
`(214) 932-6400
`(214) 932-6499 (Fax)
`
`George B. Davis (Reg. No. 68,205)
`Daniel J. Jakubisin (Reg. No. 76,320)
`gdavis@mcguirewoods.com
`djakubisin@mcguirewoods.com
`MCGUIREWOODS LLP
`
`800 East Canal St.
`
`Richmond, VA 23219
`(804) 775-1000
`(804) 775 -2016 (Fax)
`
`The individual signing below has the authority to execute this document on behalf
`
`of Sprint.
`
`
`
`Sprint Spectrum L.P.
`SprintCom, Inc.
`Sprint Corporation
`
`