`
`In re Patent of:
`U.S. Patent No.:
`Issue Date:
`Appl. Serial No.:
`Filing Date:
`Title:
`
`Attorney Docket No.: 41919-0002CP1
`
`Singer, et al.
`7.783,556
`August 24, 2010
`10/800,295
`March I2, 2004
`SYSTEM AND METHOD FOR DISPLAYING ORDER
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`INFORMATION IN RELATION TO A DERIVATIVE OF
`
`PRICE
`
`Mail Stop Patent Board
`Patent Trial and Appeal Board
`U.S. Patent and Trademark Office
`
`P.O. Box 1450
`
`Alexandria, VA 22313-1450
`
`PETITIONERS’ POWERS OF ATTORNEY IN A POST GRANT
`
`PROCEEDINGS BEFORE THE PATENT TRIAL AND APPEAL BOARD
`
`Petitioners. Tradestation Group, Inc., and TradeStation Securities, Inc., each
`
`hereby appoints the following practitioners as its attorneys to transact all business
`
`in the United States Patent & Trademark Office associated with any inter partes
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`review, covered business method review, post grant review, or other review
`
`proceedings before the Patent Trial and Appeal Board of the above-captioned
`
`patent:
`
`John C. Phillips, Reg. No. 35,322
`
`Kevin Su, Reg. No. 57,377
`
`Adam Kessel (Pro Hac Vice Admission)
`
`01°F ish & Richardson, P.C.. and all practitioners associated with PTO
`
`Customer Number 26171.
`
`In addition:
`
`
`
`Attorney Docket No. 4 I 919-OOOZCPI
`Proceeding No. CBMZOIS-00172
`
`Michael T. Rosato, Reg. No. 52.182
`
`Matthew A. Argenti, Reg. No. 61,836
`
`Of Wilson Sonsini Goodrich & Rosati; and
`
`Robert E. Sokohl, Reg. No. 36,013
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`Of Sterne, Kessler, Goldstein & Fox P.L.L.C.
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`I have the authority to execute this document on behalf of TradeStation
`
`Group, Inc. and Tradestation Securities, Inc.
`
`TradeStation Group, Inc. and
`
`Tradestation Securities, Inc
`
`By:
`
`Name:
`
`,§f‘e gfin I4 - Cftffi B‘!-" *1
`
`Title:
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`Date: H91 [7, 2°! 5
`
`IQ