Case No. IPR2024-01077
`U.S. Patent No. 10,139,859
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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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`SAMSUNG ELECTRONICS CO., LTD.;
`SAMSUNG ELECTRONICS AMERICA, INC.,
`Petitioner
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`V.
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`OURARING, INC.,
`Patent Owner.
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`Case No. IPR2024-01077
`U.S. Patent No. 10,139,859
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`PETITIONER SAMSUNG ELECTRONICS CO., LTD’S
`UPDATED POWER OF ATTORNEY
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`Case No. IPR2024-01077
`U.S. Patent No. 10,139,859
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`Pursuant to 37 C.F.R. § 42.10(b), Petitioner Samsung Electronics Co.,
`Ltd. (“Samsung”) hereby appoints the following attorneys to prosecute and
`transact all business before the Patent Trial and Appeal Board of the U.S. Patent
`and Trademark Office in connection with Samsung’s Petition for Inter Partes
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`Review of U.S. Patent No. 10,139,859.
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`PETITIONER’S LEAD AND BACK-UP COUNSEL
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`Lead Counsel William M. Fink (Reg. No. 72,332)
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`O’Melveny & Myers LLP
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`1625 Eye Street, NW
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`Washington, DC 20006
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`Phone: (202) 383-5300
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`Fax: (202) 383-5414
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`E-Mail: tfink@omm.com
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`Counsel for Petitioners Samsung Electronics Co., Ltd.
`and Samsung Electronics America, Inc.
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`First Back-Up Counsel | John Kappos (Reg. No. 37,861)
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`O’Melveny & Myers LLP
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`2801 North Harwood Street, Suite 1600
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`Dallas, TX 75201
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`Telephone: (972) 360-1900
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`Fax: (972) 360-1901
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`E-Mail: jkappos@omm.com
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`Counsel for Petitioners Samsung Electronics
`Co., Ltd. and Samsung Electronics America, Inc.
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`Back-Up Counsel Benjamin Haber (Reg. No. 67,129)
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`O’Melveny & Myers LLP
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`400 South Hope Street, 18th Floor
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`Los Angeles, CA 90071
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`Telephone: (213) 430-6000
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`Fax: (213) 430-6407
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`E-Mail: bhaber@omm.com
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`Counsel for Petitioners Samsung Electronics Co., Ltd.
`and Samsung Electronics America, Inc.
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`Case No. IPR2024-01077
`U.S. Patent No. 10,139,859
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`Back-Up Counsel
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`Marc Pensabene (Reg. No. 37,416)
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`O’Melveny & Myers LLP
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`1301 Avenue of the Americas, Suite 1700
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`New York, NY 10019
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`Telephone: (212) 326-2000
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`Fax: (212) 326-2061
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`E-Mail: mpensabene@omm.com
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`Counsel for Petitioners Samsung Electronics
`Co., Ltd. and Samsung Electronics America, Inc.
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`Back-Up Counsel
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`Mark Liang (Reg. No. 81,045)
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`O’Melveny & Myers LLP
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`Two Embarcadero Center, 28th Floor
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`San Francisco, CA 94111
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`Telephone: (415) 984-8700
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`Fax: (415) 984-8701
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`E-Mail: mliang@omm.com
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`Counsel for Petitioners Samsung Electronics
`Co., Ltd. and Samsung Electronics America, Inc.
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`Back-Up Counsel
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`Sorin G. Zaharia (Reg. No. 75,662)
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`O’Melveny & Myers LLP
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`Two Embarcadero Center, 28th Floor
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`San Francisco, CA 94111
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`Telephone: (415) 984-8700
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`Fax: (415) 984-8701
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`E-Mail: szaharia@omm.com
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`Counsel for Petitioners Samsung Electronics
`Co., Ltd. and Samsung Electronics America, Inc.
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`Back-Up Counsel
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`Khanh Leon (pending pro hac vice)
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`O’Melveny & Myers LLP
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`1625 Eye Street, NW
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`Washington, DC 20006
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`Phone: (202) 383-5300
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`Fax: (202) 383-5414
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`E-Mail: kleon@omm.com
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`Counsel for Petitioners Samsung Electronics
`Co., Ltd. and Samsung Electronics America, Inc.
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`Case No. IPR2024-01077
`U.S. Patent No. 10,139,859
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`Back-Up Counsel Argirenia Zervos (pending pro hac vice)
`O’Melveny & Myers LLP
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`1625 Eye Street, NW
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`Washington, DC 20006
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`Phone: (202) 383-5300
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`Fax: (202) 383-5414
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`E-Mail: rzervos@omm.com
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`Counsel for Petitioners Samsung Electronics
`Co., Ltd. and Samsung Electronics America, Inc.
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`For Samsung Electronics Co., Ltd.
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`W Date: September 3, 2025
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`Name: Seung Woo Ben Hur
`Title: Principal Legal Counsel
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`Case No. IPR2024-01077
`U.S. Patent No. 10,139,859
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`CERTIFICATE OF SERVICE (37 C.F.R. § 42.6(e)(1))
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`I hereby certify that on September 3, 2025, I caused a true and correct
`copy of the foregoing PETITIONER SAMSUNG ELECTRONICS CO., LTD’S
`UPDATED POWER OF ATTORNEY to be served electronically on counsel
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`for Patent Owner at the following addresses:
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`Jasjit S. Vidwan, Reg. No. 72,080 Robert G. Pluta, Reg. No. 50,970
`JVidwan(@mayerbrown.com RPluta@mayerbrown.com
`Angeline Premraj, Reg. No. 80,472 Nicholas H. Ciulla, Reg. No. 78,409
`APremraj@mayerbrown.com NCiulla@mayerbrown.com
`MAYER BROWN LLP Daniel Kim, Reg. No. 85,591
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`1999 K Street, N.W. DKim@mayerbrown.com
`Washington, D.C. 20006-1101 MAYER BROWN LLP
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`Tel.: 202.263.3065 71 S. Wacker Drive
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`Chicago, IL 60606
`Tel.: 312.782.0600
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`Dated: September 3, 2025 Respectfully submitted,
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`/s/ William M. Fink
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`William M. Fink (Reg. No. 72,332)
`O’Melveny & Myers LLP
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`1625 Eye Street, NW
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`Washington, DC 20006
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`Phone: (202) 383-5300
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`Fax: (202) 383-5414
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`E-Mail: tfink@omm.com
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`Attorney for Petitioner
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