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`UNITED STATES PATENT AND TRADEMARK OFFICE
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`BEFORE THE PATENT TRIAL AND APPEAL BOARD
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` AMAZON.COM, INC. AND AMAZON.COM SERVICES LLC
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`Petitioner,
`v.
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` XR COMMUNICATIONS, LLC D/B/A VIVATO TECH,
` Patent Owner.
`__________________________
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`Case IPR2022-01353
`Patent No. 10,715,235
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`PATENT OWNER’S POWER OF ATTORNEY
`PURSUANT TO 37 C.F.R. §42.10(B)
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`Case IPR2022-01353
`U.S. Patent No 10,715,235
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`Pursuant to 37 C.F.R. § 42.10(b), Patent Owner XR Communications LLC
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`dba Vivato Technologies hereby appoints the following practitioners as its attorneys
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`to transact all business in the United States Patent & Trademark Office associated
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`with the above-captioned Inter Partes Review of U.S. Patent No. 10,715,235.
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`Lead Counsel
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`Back-Up Counsel
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`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
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`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
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`The individual signing below has the authority to execute this document on
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`behalf of XR Communications LLC.
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`Date: August __, 2022
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`By: __________________________
`Name: Kai Hansen
`Title: Manager
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`Case IPR2022-01353
`U.S. Patent No 10,715,235
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`CERTIFICATE OF SERVICE (37 C.F,R. § 42.6(e))
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`The undersigned hereby certifies that the above document was served on
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`24
`August __, 2022, by filing this document through the Patent Trial and Appeal
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`Board End to End System as well as delivering a copy via electronic mail upon the
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`following attorneys of record for the Petitioner:
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`Andrew M. Mason, Reg. No. 64,034
`andrew.mason@klarquist.com
`Cameron D. Clawson, Reg. No. 73,509
`cameron. clawson@klarquist.com
`POWER OF ATTORNEY
`Claire Green, Reg. No. 75,290
`claire. green@klarquist.com
`Todd M. Siegel, Reg. No. 73,232
`todd.siegel@klarquist.com
`KLARQUIST SPARKMAN, LLP
`121 SW Salmon Street, Suite 1600
`Portland, Oregon, 97204
`503-595-5300 (phone)
`503-595-5301 (fax)
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`Date: August __, 2022
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` /Reza Mirzaie/
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`RUSS AUGUST & KABAT
`12424 Wilshire Blvd., 12th Fl.
`Los Angeles, CA 90025
`(310) 826-7474
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`Reza Mirzaie
`Reg. No. 69,138
`Attorney for Patent Owner
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