`
`_____________________
`
`BEFORE THE PATENT TRIAL AND APPEAL BOARD
`
`_____________________
`
`
`
`
`
`IBG LLC,
`INTERACTIVE BROKERS LLC,
`TRADESTATION GROUP, INC.,
`TRADESTATION SECURITIES, INC.,
`Petitioners
`
`v.
`
`TRADING TECHNOLOGIES INTERNATIONAL, INC.
`Patent Owner
`
`____________________
`
`Patent No. 7,212,999
`_____________________
`
`
`
`TRADESTATION SECURITIES, INC.’S POWER OF ATTORNEY
`PURSUANT TO 37 C.F.R. § 42.10(b)
`
`
`
`Mail Stop “PATENT BOARD”
`Patent Trial and Appeal Board
`U.S. Patent and Trademark Office
`P.O. Box 1450
`Alexandria, VA 22313-1450
`
`
`
`U.S. Patent No. 7,212,999
`
`Pursuant to 37 C.F.R. § 42.10(b), Petitioner TradeStation Securities, Inc,
`
`having a principle place of business at 8050 SW 10th Street, Suite 2000,
`
`Plantation, FL 33324, hereby appoints the practitioners of Customer No. 26111 as
`
`its attorneys to transact all business in the United States Patent & Trademark
`
`Office associated with the covered business method review of U.S. Patent No.
`
`7,212,999. These attorneys include at least:
`
`Lead Counsel:
`
`Back-up Counsel:
`
`Robert E. Sokohl (Reg. No. 36,013)
`Lori A. Gordon (Reg. No. 50,633)
`Richard M. Bemben (Reg. No. 68,658)
`John C. Phillips (Reg. No. 35,322)
`
`ph: 202.772.8677
`ph: 202.772.8862
`ph: 202.772.8549
`ph. 858.678.4304
`
`Address:
`
`STERNE, KESSLER, GOLDSTEIN & Fox P.L.L.C.
`1100 New York Avenue, NW.
`Washington, D.C. 200005
`202.371.2600 (reception)
`202.371.2540 (fascirnile)
`rsokohl—PTAB@skgf.com
`lgordon—PTAB@sl<gf.c0rn
`rbemben-PTAB@skgf.c0rr1
`
`FISH & RICHARDSON, P.C.
`3200 RBC Plaza
`
`60 South Sixth Street
`
`Minneapolis, MN 55402
`
`Email: CBM41919—001,2CPlflfrcom
`
`/V‘ ‘*
`
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`57 20/82764087il .DOCX
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