UNITED STATES PATENT AND TRADEMARK OFFICE
`
`BEFORE THE PATENT TREAL AND APPEAL BOARD
`
`MICROSOFT CORPORATION,
`Petitioner,
`
`V.
`
`PERSONAL AUDIO LLC,
`Patent Owner.
`
`Case [PR2015~00500
`
`Patent 7,509,178
`
`POWER OF ATTORNEY AND DESIGNATION OF COUNSEL
`
`Patent owner Personal Audio LLC hereby appoints the following practitioners as
`its attorneys and registered agents to transact all business in the United States
`Patent & Trademark Office associated with the subject inter partes review of the
`above captioned patent.
`
`Lead Counsel: Minghdi Yang, Reg. No. 71,989
`Backup Counsel: Greg Donahue, Reg. No. 47,531
`
`I have the authority to execute this document on behalf of Personal Andro LLC,
`
`Personal Audio LLC
`
`Date: ”22/2015
`
`éxfl
`
`Brad Liddle
`
`CEO & General Counsel
`
`Personal Audio LLC
`
`550 Fannin St., Suite 1313
`
`Beaumont, Texas 77701
`
`
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