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`BEFORE THE PATENT TRIAL AND APPEAL BOARD
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`VALVE CORPORATION,
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`Petitioner,
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`PALTALK HOLDINGS, INC.,
`Patent Owner
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`Case No.: To be Assigned
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`Patent 6,226,686 & 6,226,686 C1
`Claims 1—4, 7—21, 28—35, 39, 40, 47—54, 56, 57 and 64—70
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`PETITIONER’S POWER OF ATTORNEY
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`
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`Pursuant to 37 CPR § 42.10(b), Petitioner Valve Corporation hereby
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`appoints the following practitioners as its attorneys to transact all business in the
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`United States Patent and Trademark Office associated with the above-captioned
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`inter partes review:
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`LEAD COUNSEL:
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`BACKUP COUNSEL:
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`Reynaldo C. Barcelo
`Sharon A. Israel
`Reg. No. 42,290
`Reg. No. 41,867
`BARCELO, HARRISON &
`SHOOK, HARDY & BACON
`WALKER, LLP
`L.L.P.
`2901 W. Coast Hwy, Ste. 200
`600 Travis Street, Ste. 3400
`Newport Beach, CA 92663
`Houston, TX 77002
`(713) 546-5689
`(949) 340—9736
`
`sisrael@shb.com
`rey@bhiplaw.com
`BACKUP COUNSEL:
`BACKUP COUNSEL:
`
`Houston, TX 77002
`Kansas City, MO 64108
`(713) 546-5671
`(816) 559-2186
`
`‘ plujin@shb.corn
`kfriesen@shb.com
`
`
`
`
`
`Patrick A. Luj in
`Reg. No. 35,260
`SHOOK, HARDY & BACON
`L.L.P.
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`2555 Grand Boulevard
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`Kyle E. Friesen
`Reg. No. 65,371
`SHOOK, HARDY & BACON
`L.L.P.
`
`600 Travis Street, Ste. 3400
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`
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`
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`The individual signing below has the authority to execute this document on
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`behalf of Petitioner, Valve Corporation.
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`
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`Dated:
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`1;
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`QM K @0627’4 _
`l
`Name:
`L
`ILL/(041M
`Title:
`£15m {061/155 :6
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`
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`
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`CERTIFICATE OF SERVICE
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`Pursuant to 37 C.F.R. § 42.105, the undersigned certifies that on June 14,
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`2018, a complete and entire copy of this Petitioner’s Power of Attorney was provided
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`via Priority Mail Express or by means at least as fast and reliable as Priority Mail
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`Express, postage prepaid, to the Patent Owner at the correspondence address of the
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`attorneys of record for the 523 and 686 Patents shown in USPTO PAIR:
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`David Lindenbaum
`Francis Morris
`John Ward
`Kelley Drye & Warren LLP
`One Jefferson Road
`Parsippany NJ 07054
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`Courtesy copies were served by electronic mail upon the Patent Owner’s
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`counsel in the Riot IPR.
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`Gregory M. Howison (Lead Counsel)
`ghowison@munckwilson.com
`Keith D. Harden (Backup Counsel)
`kharden@munckwilson.com
`Brian D. Walker (Backup Counsel)
`bwalker@munckwilson.com
`MUNCK,WILSON,MANDALA, LLP
`12770 Coit Road, Suite 600
`Dallas, Texas 75251
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`
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`Courtesy copies were also served by electronic mail upon counsel for
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`Petitioner, Riot Games, Inc., in IPR2018-00131.
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`Joseph A. Micallef (Lead Counsel)
`Scott M. Border (Lead Backup Counsel)
`Samuel A. Dillon (Backup Counsel)
`Riot_paltalk@sidley.com
`SIDLEY AUSTIN LLP
`1501 K Street, N.W.
`Washington, D.C. 20005
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`Dated: June 14, 2018
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`Respectfully Submitted,
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`/Sharon A. Israel/
`Sharon A. Israel (Reg. No. 41,867)
`(sisrael@shb.com)
`Shook, Hardy & Bacon L.L.P.
`600 Travis St., Suite 3400
`Houston, TX 77002-2926
`Phone: (713) 546-5689
`Fax: (713) 227-9508
`Attorney for Petitioner
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`