`
`In re Patent of:
`U.S. Patent No.:
`Issue Date:
`Appl. Serial No.:
`Filing Date:
`Title:
`
`Stephen Barbour
`11,574,372
`February 7, 2023
`16/484,728
`January 6, 2020
`BLOCKCHAIN MINE AT OIL OR GAS FACILITY
`
`Mail Stop Patent Board
`Patent Trial and Appeal Board
`U.S. Patent and Trademark Office
`P.O. Box 1450
`Alexandria, VA 22313-1450
`
`PETITIONER’S POWER OF ATTORNEY IN POST GRANT PROCEEDINGS BEFORE
`THE PATENT TRIAL AND APPEAL BOARD
`
`Petitioner, Crusoe Energy Systems, LLC, hereby appoints the following practitioners as
`its attorneys to transact all business in the United States Patent & Trademark Office associated
`with any inter partes review, post grant review, or other review proceedings before the Patent
`Trial and Appeal Board of the above-captioned patent:
`
`John Phillips, Reg. No. 35,322
`Jia Zhu, Limited Rec. No. L1372
`
`and all practitioners associated with PTO Customer Number 26171.
`I have the authority to execute this document on behalf of Crusoe Energy Systems, LLC
`
`Crusoe Energy Systems, LLC
`
`