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`UNITED STATES PATENT AND TRADEMARK OFFICE
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`BEFORE THE PATENT TRIAL AND APPEAL BOARD.
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`IBG LLC and INTERACTIVE BROKERS LLC,
`Petitioners,
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`V.
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`TRADING TECHNOLOGIES INTERNATIONAL, INC.,
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`Patent Owner.
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`Patent No. 6,766,304
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`PETITIONERS’ IBG LLC AND INTERACTIVE BROKERS LLC I
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`POWER OF ATTORNEY
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`Pursuant to 37 C.F.R. § 42.10(a) and (b), Petitioners, IBG LLC and
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`Interactive Brokers LLC, hereby appoint the following practitioners as attorneys to
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`act on Petitioners’ behalf and to transact all business in the United States Patent &
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`Trademark Office associated with a petition for covered business method review of
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`U.S. Patent No. 6,766,304:
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`Michael T. Rosato
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`
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`iMatthew A. Argenti
`USPTO Reg. No. 61,836
`USPTO Reg. No. 52,182
`WILSON SONSINI GOODRICH WILSON SONSINI GOODRICH &
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`& ROSATI
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`ROSATI
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`'
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`701 Fifth Avenue, Suite 5100
`Seattle, WA 98104
`Tel.: 206-883-2529
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`Fax: 206-883-2699
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`650 Page Mill Road
`Palo Alto, CA 94304‘
`Tel.: 650-354-4154
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`Fax: 650-493-6811
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` IHCOII1
`Email: mar enti I ws - r.com
`Email: rnrosato I ws
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`Robert E. Sokohl
`USPTO Reg. No. 36,013
`STERNE, KESSLER, GOLDSTEIN
`& FOX P.L.L.C.
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`1100 New York Ave. NW, Suite 600
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`Washington, DC 20005
`- Tel.: 202-772-8677
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`Fax: 202-371-2540
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`Email: RSOKOHL I skf.com
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` By:
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`‘
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`For: IBG LLC and
`tective Brokers LLC
`Name: Bradford Jacobowitz
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`I
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`Title: Associate General Counsel
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`Date: Februam 17, 2016