`_____________________________
`
`BEFORE THE PATENT TRIAL AND APPEAL BOARD
`_____________________________
`
`APPLE INC. and HP INC.
`
`Petitioner,
`v.
`
`XR COMMUNICATIONS LLC
`
`Patent Owner.
`__________________________
`
`Case IPR2022-00367
`
`U.S. Patent No. 10,715,235
`_____________________________
`
`XR COMMUNICATIONS LLC’S
`POWER OF ATTORNEY
`PURSUANT TO 37 C.F.R. §42.10(b)
`
`
`
`
`
`
`
`
`
`Mail Stop “PATENT BOARD”
`Patent Trial and Appeal Board
`U.S. Patent and Trademark Office
`P.O. Box 1450
`Alexandria, VA 22313-1450
`
`
`
`
`
`
`
`IPR2022-00367
`U.S. Patent No. 10,715,235
`
`Pursuant to 37 C.F.R. § 42.10(b), Patent Owner XR Communications LLC
`
`dba Vivato Technologies hereby appoints the following practitioners as its attorneys
`
`to transact all business in the United States Patent & Trademark Office associated
`
`with the above-captioned Inter Partes Review of U.S. Patent No. 10,715,235:
`
`Lead Counsel
`
`Back-Up Counsel
`
`Reza Mirzaie (Reg. No. 69,138)
`Russ August & Kabat
`12424 Wilshire Blvd., 12th Fl.
`Los Angeles, CA 90025
`Phone: (310) 826-7474
`Fax: (310) 826-6991
`rmirzaie@raklaw.com
`rak_vivato@raklaw.com
`
`Philip Wang (Reg. No. 74,621)
`Russ August & Kabat
`12424 Wilshire Blvd., 12th Fl.
`Los Angeles, CA 90025
`Phone: (310) 826-7474
`Fax: (310) 826-6991
`pwang@raklaw.com
`rak_vivato@raklaw.com
`
`The individual signing below has the authority to execute this document on
`
`behalf of XR Communications LLC.
`
`Date: February __, 2022
`
`By: __________________________
`
`Name: Kai Hansen
`
`Title: Manager
`
` 1
`
`
`
`IPR2022-00367
`U.S. Patent No. 10,715,235
`
`CERTIFICATE OF SERVICE (37 C.F.R. § 42.6(e)(1))
`The undersigned hereby certifies that the above document was served on
`
`February 23, 2022, by filing this document through the Patent Trial and Appeal
`
`Board End to End System as well as delivering a copy via electronic mail upon the
`
`following attorneys of record for the Petitioner:
`
`W. Karl Renner (Reg. No. 41,265)
`David Holt (Reg. No. 65,161)
`Usman A. Khan (Reg. No. 70,439)
`Fish & Richardson P.C.
`3200 RBC Plaza
`60 South Sixth Street
`Minneapolis, MN 55402
`Tel: 202-783-5070
`Fax: 877-769-7945
`IPR50095-0047IP1@fr.com
`PTABInbound@fr.com
`ptab@fr.com
`dth@fr.com
`khan@fr.com
`
`Date: February 23, 2022
`
` /Reza Mirzaie/
`
`RUSS AUGUST & KABAT
`12424 Wilshire Blvd., 12th Fl.
`Los Angeles, CA 90025
`(310) 826-7474
`
`Reza Mirzaie
`Reg. No. 69,138
`Attorney for Patent Owner
`
` 2
`
`