`
`
`
`BEFORE THE PATENT TRIAL AND APPEAL BOARD
`
`
`
`
`PRICELINE.COM LLC AND BOOKING.COM B.V.,
`Petitioner
`
`v.
`
`DDR HOLDINGS, LLC,
`Patent Owner
`
`
`
`
`
`Case IPR2019-00435
`U.S. Patent 9,639,876
`
`
`
`
`PATENT OWNER POWER OF ATTORNEY
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`
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`Patent Owner designates Louis J. Hoffman, the attorney of record in the
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`subject patent of the above-captioned proceeding, as its lead counsel in this matter,
`
`and hereby provides Power of Attorney to attorney Justin Lesko (Reg. No. 69,643),
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`to transact all business as its back-up counsel in the United States Patent &
`
`Trademark Office in connection with the above-captioned proceeding. The
`
`undersigned represents that he has the authority to execute this document on behalf
`
`of Patent Owner.
`
`
`
`
`
`
`
`Case No. IPR2019-00435
`U.S. Patent 9,639,876
`
`DDR HOLDINGS, LLC
`Patent Owner
`
`By: c~~---
`Name: Daniel D. Ross
`Title: Managing Director
`Date: January :5_, 2019
`
`CERTIFICATE OF SERVICE f37 C.F.R. § 42.6(e)(l))
`
`The undersigned hereby certifies that on January 4, 2019, a complete and
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`correct copy of the foregoing PATENT OWNER POWER OF ATTORNEY was
`
`served via electronic mail on the following counsel of record for Petitioner:
`
`Nathan Rees (Reg. No. 63,820)
`Allan Braxdale (Reg. No. 64,276)
`R. Ross Viguet (Reg. No. 42,203)
`Brett C. Govett (Reg. No. 45,492)
`NORTON ROSE FULBRIGHT US LLP
`2200 Ross Avenue
`Suite 3600
`Dallas, Texas 75201-2784
`Email: DDR IPR Service@nortonrosefulbright.com
`
`/Louis J. Hoffman/
`Louis J. Hoffman, Reg. No. 38,918
`LOUIS J. HOFFMAN, P.C.
`7689 East Paradise Lane
`Suite 2
`Scottsdale, Arizona 85260
`Louis@valuablepatents.com
`
`2
`
`
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