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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 IPR2021-00546
`Patent 10,206,025
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`PATENT OWNER’S POWER OF ATTORNEY
`PURSUANT TO 37 C.F.R. § 42.10(b)
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`504189986 v1
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`IPR2021-00546 Patent Owner’s Power of Attorney
`US. 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 US. 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:
`1! 1‘ [7.0 ’LI
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`IPR2021-00546 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 March 3, 2021, I caused a true and correct copy of the
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`foregoing to be served on the following counsel for Petitioner by electronic mail to
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`the following email address:
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`W. Karl Renner (Reg. No. 41,265)
`David L. Holt (Reg. 65,161)
`Joel A. Henry (Reg. 72,970)
`Fish & Richardson P.C.
`3200 RBC Plaza
`60 South Sixth Street
`Minneapolis, MN 55402
`Email: IPR50095-00021IP1@fr.com
`Email: PTABInbound@fr.com
`Email: axf-ptab@fr.com
`Email: holt2@fr.com
`Email: in@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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