`
`Case lPR20l4-01478
`
`U.S. Patent 7,293,520
`
`PATENT OWNER POWER OF ATTORNEY
`
`I I hereby appoint Scott A. McKeown (Registration No. 42,866), Christopher A. Bullard
`
`(Registration No. 57,644), and Michael L. Kiklis (Registration No. 38,939), associated with the
`following Customer Number as my/our attorney(s) or agent(s), and to transact all business in the
`Patent Trial & Appeal Board of the United States Patent and Trademark Office connected therewith
`for a petition for Inter Partes Review (lPR20l4—0l478) of U.S. Patent No. 7 293 520.
`
`22850
`
`I am he Vice President
`
`8 (titl of signer) of:
`
`IX} WESTERNGECO L.L.C., Patent Owner in this Inter Partes Review.
`
`SIGNATURE of Patent Owner
`
`Signature
`
`it
`
`it
`
`Date
`
`Q?/§“z’7 fxy’
`
`Name
`
`Rory E. Hokanson
`
`Telephone
`
`713 -689-2342
`
`Title ad Company ic Prset eco LLC
`
`NOTE: Signature — This form must be signed in accordance with 37 CFR 1.33. See 37 CFR 1.4 for
`signature requirements and certifications. Submit multiple forms for more than one signature, see
`below’’‘.
`
`I *Total of
`
`1
`
`forms are submitted.