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`BEFORE THE PATENT TRIAL AND APPEAL BOARD
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`MICROSOFT CORPORATION
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`Petitioner
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`WINDY CITY INNOVATIONS, LLC
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`Patent Owner
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`U.S. Patent No. 8,694,657 B1
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`Issued: April 8, 2014
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`Application No.: 09/399,578
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`Filed: September 20, 1999
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`Title: Real Time Communications System
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`MICROSOFT CORPORATION’S
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`POWER OF ATTORNEY PURSUANT TO 37 C.F.R.
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`42.10 b
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`
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`Commissioner:
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`Petitioner Microsoft Corporation hereby appoints:
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`
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`Back-Up Counsel
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`John W. McBride
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`pro hac vice to be filed
`jwmcbride@sidley.com
`SIDLEY AUSTIN LLP
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`1 South Dearbom St.
`Chicago, IL 60603
`Telephone: 312-853-7014
`Facsimile: 312-853-7036
`
`Herman F. Webley
`pro hac vice to be filed
`hweb1ey@sidley.com
`SIDLEY AUSTIN LLP
`
`1501 K Street, N.W.
`
`Washington, D.C. 20005
`Telephone: 202-736-8609
`Facsimile: 202-736-8711
`
`Todd M. Siegel
`USPTO Reg. No. 73,232
`KLARQUIST SPARKMAN, LLP
`
`121 S.W. Salmon Street, Ste. 1600
`Portland, Oregon 97204
`Telephone: (503) 595-5300
`Facsimile: (503) 595-5301
`todd.sie el
`klar uist.com
`
`= Lead Counsel
`
`_ Joseph A. Micallef
`USPTO Reg. No. 39,772
`SIDLEY AUSTIN LLP
`1501 K Street, N.W.
`
`Washington, D.C. 20005
`' Telephone: 202-736-8492
`Facsimile: 202-736-8711
`iprnotices@,sidley.com
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`as attorneys to represent the undersigned before the United States Patent and
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`Trademark Office (USPTO) in connection with the Inter Partes Review of U.S.
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`Patent No. 8,694,657 B1.
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`
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`The undersigned is authorized to sign this Power of Attorney on behalf of
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`Petitioner Microsoft Corporation.
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`Executed at Redmond, WA on the 54:1; of T9 bwc % , 2017.
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` MICROS ORPORATION
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`
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`By:
`
`
`
`Name: Davl
`
`oward
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`Title: Corporate Vice President
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`
`
`
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`CERTIFICATE OF SERVICE
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`I hereby certify that on this 7th day of January, 2017, a true and correct copy of the
`foregoing document was served in its entirety in the manner indicated below on the
`following:
`
`
`Peter K. Trzyna, ESQ.
`PO BOX 7131
`Chicago IL 60680
`Pkt-law@sbcglobal.net
`Pktlawoffice@gmail.com
`
`Peter Lambrianakos
`Brown Rudnick LLP
`7 Times Square
`New York, NY 10036
`plambrianakos@brownrudnick.com
`afabricant@brownrudnick.com
`vrubino@brownrudnick.com
`
`Bradley W. Caldwell
`Jason D. Cassady
`John Austin Curry
`Warren J. McCarty
`CALDWELL CASSADY & CURRY
`2101 Cedar Springs Road, Suite 1000
`Dallas, Texas 75201
`bcaldwell@caldwellcc.com
`jcassady@caldwellcc.com
`acurry@caldwellcc.com
`wmccarty@caldwellcc.com
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`U.S. Mail Priority Express & Email
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`Federal Express & Email
`
`Federal Express & Email
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`
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`Respectfully submitted,
`
`/ Joseph A. Micallef /
`Joseph A. Micallef
`Registration No. 39,772
`Attorney for Petitioner
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`
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`Dated: January 7, 2017