`
`In re Patent of:
`U.S. Patent No:
`Issue Date:
`Appl. Serial No.:
`Filing Date:
`Title:
`
`Attorney Docket No.: 41919-0005CPl
`
`Kemp II, et al.
`6.766.304
`July 20, 2004
`09/894,637
`June 27, 2001
`CLICK BASED TRADING WITH INTUITIVE GRID
`DISPLAY OF MARKET DEPTH
`
`Mail Stop Patent Board
`Patent Trial and Appeal Board
`U.S. Patent and Trademark Office
`PO. Box 1450
`
`Alexandria, VA 22313-1450
`
`PETITIONERS’ POWERS OF ATTORNEY IN A POST GRANT
`PROCEEDINGS BEFORE THE PATENT TRIAL AND APPEAL BOARD
`
`Petitioners. TradeStatior1 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 interpartes
`
`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 Kcssel (Pro Hac Vice Admission)
`
`of Fish & Richardson. P.C.. and all practitioners associated with PTO
`
`Customer Number 26171.
`
`In addition:
`
`
`
`Attorney Docket No. 4l9l9—0005CPl
`Proceeding No. CBl\/12015-0016!
`
`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
`
`Of Sterne, Kessler, Goldstein & Fox P.L.L.C.
`
`I have the authority to execute this document on behalf ofTradeStation
`
`Group, Inc. and TradeStation Securities, Inc.
`
`TradeStation Group, Inc. and
`
`TradeStation Securities, Inc
`
`/Z67, ./4\
`
`Name:
`Title:
`
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`V/°
`
`
`
`Date: V53’
`
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