`
`BEFORE THE PATENT TRIAL AND APPEAL BOARD
`
`PEAG LLC (d/b/a JLab Audio), Audio Partnership LLC and Audio Partnership
`PLC (d/b/a Cambridge Audio)
`Petitioners
`
`V.
`
`VARTA Microbattery GmbH,
`Patent Owner
`
`Case No. IPR2020-01211
`
`US. Patent No. 9,496,581
`
`Case No. IPR2020-01212
`
`US. Patent No. 9,153,835
`
`Case No. IPR2020—01213
`
`US. Patent No. 9,799,858
`
`Case No. IPR2020-01214
`
`US. Patent No. 9,799,913
`
`PATENT OWNER’S POWER OF ATTORNEY
`
`
`
`IPR2020—01211, IPR2020—012l2, IPR2020-Ol213, IPR2020-012l4
`Patent Owner’s Power of Attorney
`Pursuant to 37 C.F.R. § 42.10(a) and (b), the undersigned hereby appoints
`the practitioners associated with Leydig, Voit & Mayer, Ltd., Customer Number
`
`23460, including the following lead and back-up counsel, to prosecute the above
`
`captioned Inter Partes Reviews and transact all business in the US. Patent and
`
`Trademark Office connected herewith.
`
`Address all communications to:
`
`Leydig, Voit & Mayer, Ltd.
`Two Prudential Plaza, Suite 4900
`180 North Stetson A venue
`Chicago, Illinois 60601—6731
`Tel: (312) 616-5600
`Fax: (312) 616-5700
`
`Address all e-mails and telephone calls to lead and back-up counsel (each
`
`associated with the above Customer Number), listed below:
`
`H. Michael Hartmann (Lead Counsel, USPTO Reg. No. 28,423)
`Tel: (312) 616-5600
`Fax: (312) 616-5700
`Email: mhartmann@leydig.com
`
`Wesley O. Mueller (First Back-up Counsel, USPTO Reg. No. 33,976)
`Tel: (312) 616-5600
`Fax: (312) 616-5700
`Email: wmuellergdlleydigcom
`
`Robert T. Wittmann (Second Back-Up Counsel, Reg. No. 54,549)
`Tel. (312) 616-5600
`Fax (312) 616-5700
`Email: bwittmann@leydig.com
`
`
`
`IPR2020—01211, IPR2020-01212, IPR2020-01213, IPR2020-01214
`Patent Owner’s Power of Attorney
`
`The individual signing below has the authority to execute this document on
`behalf of VARTA Microbattery GmbH.
`
`Printed NameMAjL-g
`
`
`For: VARTA ' ry GmbH By3/yn
`
`
`Tide-Mgra/4%}! CCO
`Date: 4‘. 4%?ng
`Q“ is:
`. A; ”{fléb
`
`
`
`
`
`
`
`CERTIFICATE OF SERVICE
`
`
`
`Pursuant to 37 C.F.R. § 42.6(e), I hereby certify service of PATENT
`
`OWNER VARTA MICROBATTERY GMBH’S POWER OF ATTORNEY
`
`UNDER 37 C.F.R. § 42.10 by PTAB E2E electronic notification and electronic
`
`mail to each of the following individuals on the date indicated below:
`
`
`
`Date: August 20, 2020
`
`
`
`
`
`Paul A. Ragusa
`Email: paul.ragusa@bakerbotts.com
`Jennifer Tempesta
`Jennifer.Tempesta@bakerbotts.com
`BAKER BOTTS LLP
`30 Rockefeller Plaza
`New York, New York 10112
`
`/s/ H. Michael Hartmann
`H. Michael Hartmann, Reg. No. 28,423
`Email: mhartmann@leydig.com
`Leydig, Voit & Mayer, Ltd.
`Two Prudential Plaza, Suite 4900
`180 North Stetson Avenue
`Chicago, Illinois 60601-6731
`Telephone: (312) 616-5600
`Facsimile:
`(312) 616-5600
`
`
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