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`BEFORE THE PATENT TRIAL AND APPEAL BOARD
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`SAMSUNG ELECTRONICS AMERICA, INC., and
`SAMSUNG ELECTRONICS CO., LTD.
`Petitioners,
`v.
`FIRSTFACE, CO., LTD.
`Patent Owner.
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`Patent No. 8,831,557
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`PETITIONER’S POWER OF ATTORNEY
`UNDER 37 C.F.R. § 42.10(B)
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`Petitioners SAMSUNG ELECTRONICS AMERICA, INC., and
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`SAMSUNG ELECTRONICS CO., LTD.. hereby appoints the Practitioner(s)
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`associated with USPTO Customer No. 28120, including the following attorneys, to
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`transact all business in the United States Patent and Trademark Office associated
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`with the above-captioned inter partes review of U.S. Patent No. 8,831,557:
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`Scott A. McKeown (Lead Counsel) (Reg. No. 42,866)
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`Victor Cheung (Backup Counsel) (Reg. No. 66,229)
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`The individual signing below has the authority to execute this document on behalf
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`of Petitioners SAMSUNG ELECTRONICS AMERICA, INC., and SAMSUNG
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`ELECTRONICS CO., LTD.
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`SAMSUNG ELECTRONICS AMERICA, INC., and
`SAMSUNG ELECTRONICS CO., LTD.
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`By:
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`Name:
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`Title:
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`Date:
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` /Michelle Yang/
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`Michelle Yang
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`Principal Legal Counsel
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`November 7, 2018
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`1
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