`
`BEFORE THE PATENT TRIAL AND APPEAL BOARD
`
`VALVE CORPORATION,
`
`Petitioner,
`
`V.
`
`IRONBURG INVENTIONS LTD.,
`
`Patent Owner.
`
`Case IPR2016-00948
`
`(Patent 8,641,525)
`
`PATENT OWNER’S AMENDED
`
`POWER OF ATTORNEY
`
`
`
`Pursuant to 37 CPR. § 42.10(b), Patent Owner, Ironburg Inventions Ltd., a
`
`corporation duly organized and existing under the laws of the United Kingdom
`
`having its principal place of business at 10 Market Place, Wincanton, 8A9 9LP,
`
`Great Britain, hereby appoints the following practitioners as its attorneys to
`
`transact all business in the United States Patent and Trademark Office associated
`
`with the above—captioned inter partes review.
`
`These attorneys include at least:
`
`Lead Counsel
`
`Robert Becker, Reg. No. 37,778
`
`MANATT, PHELPS & PHILLIPS, LLP
`
`1841 Page Mill Road, Suite 200
`
`Palo Alto, CA 94304
`
`Tel: (650) 812-1370
`
`Fax: (650) 461—03 12
`
`RBeckernganattcom
`
`Back-up Counsel
`
`Ehab M. Samuel, Reg. No. 57,905
`
`MANATT, PHELPS & PHILLIPS, LLP
`
`1 1355 W. Olympic Blvd.
`
`Los Angeles, CA 90064
`
`Tel: (310) 312-4000
`
`Fax: (310) 312-4224
`
`ESamuel-PTABnganattcom
`
`
`
`Back-up Counsel
`
`Yasser El—Gamal, Reg. No. 45,339
`
`MANATT, PHELPS & PHILLIPS, LLP
`
`695 Town Center Drive, 14th Floor
`
`Costa Mesa, CA 92626
`
`Tel: (714) 371-2500
`
`Fax: (714) 371-2550
`
`YEIGamal
`
`,manattconi
`
`The individual signing below has the authority to execute this document on
`
`behalf of Patent Owner.
`
`FOR: Ironburg Inventions Ltd.
`
`SIGNATURE:K
`
`BY: Duncan Ironmonger
`
`TITLE: Director
`
`DATE: December 21, 2017
`
`3196324451
`
`