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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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`APPLE INC.,
`Petitioner,
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`v.
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`KOSS CORPORATION,
`Patent Owner.
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`_____________________
`CASE: IPR2022-00053
`U.S. PATENT NO. 10,206,025
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`PATENT OWNER’S POWER OF ATTORNEY
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`504252654 v1
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`IPR2022-00053 Patent Owner’s Powerof Attorney
`U.S. Patent 10,206,025
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`Patent Owner Koss Corporation hereby appoints the following practitioners:
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`Lead Counsel: Mark G. Knedeisen (Reg. No. 42,747)
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`Backup Counsel: Ragae M.Ghabrial (Reg. No. 59,104)
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`Michelle Weaver (Reg. No. 72,132)
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`as its attorneys to transact all business in the United States Patent & Trademark
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`Office associated with the inter partes review of U.S. Patent No. 10,206,025.
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`The undersigned is authorized to sign this Power of Attorney on behalf of
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`Patent Owner.
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`Name: Michael J. Koss,Jr.
`Title: Vice President, Marketing & Product
`Date: fe 2 zoe!
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`IPR2022-00053 Patent Owner’s Power of Attorney
`U.S. Patent 10,206,025
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`Certification of Service Under 37 C.F.R. § 42.6(e)(4)
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`I hereby certify that on November 15, 2021, I caused a true and correct copy
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`of the foregoing to be served on the following counsel for Petitioner by electronic
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`mail to the following email address:
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`W. Karl Renner
`David L. Holt
`Joel A. Henry
`Fish & Richardson P.C.
`3200 RBC Plaza
`60 South Sixth Street
`Minneapolis, MN 55402
`Email: ipr50095-0021ip3@fr.com
`Email: ptabinbound@fr.com
`Email: axf-ptab@fr.com
`Email: holt2@fr.com
`Email: jhenry@fr.com
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`/Mark G. Knedeisen/
`Mark G. Knedeisen (Reg. No. 42,747)
`K&L Gates Center, 210 Sixth Avenue
`Pittsburgh, Pennsylvania 15222
`Tel.: (412) 355-6342
`mark.knedeisen@klgates.com
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`Counsel for Patent Owner
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`By:
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