`
`BEFORE THE PATENT TRIAL AND APPEAL BOARD
`
`IBG LLC, INTERACTIVE BROKERS LLC,
`TRADESTATION GROUP, INC.,
`TRADESTATION SECURITIES, INC.,
`
`Petitioners
`
`V.
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`TRADING TECHNOLOGIES INTERNATIONAL, INC.
`
`Patent Owner
`
`Patent No. 7,412,416 B2
`
`IBG LLC’S POWER OF ATTORNEY
`
`PURSUANT TO 37 C.F.R. § 42.10(b)
`
`Mail Stop “PA TENT BOARD ”
`Patent Trial and Appeal Board
`U.S. Patent and Trademark Office
`
`P.O. Box 1450
`
`Alexandria, VA 223 13— 1450
`
`
`
`U.S. Patent No. 7,412,416 B2
`
`Pursuant to 37 C.F.R. § 42.10(b), Petitioner IBG LLC, having a principle
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`place of business at One Pickwick Plaza, Greenwich, CT 06830, 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
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`method review of U.S. Patent No. 7,412,416 B2. 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) .
`
`ph: 202.772.8677
`ph: 202.772.8862
`ph: 202.772.8549
`
`Address:
`
`STERNE, KESSLER, GOLDSTEIN & Fox P.L.L.C.
`1100 New York Avenue, N.W.
`
`Washington, D.C. 20005
`202.371.2600 (reception)
`202.371.2540 (fascirnile)
`rsokoh1—PTAB @skgf.com
`lgordon-PTAB @skgf.com
`rbemben-PTAB@sl<gf.com
`
`FOR:
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`1564;;
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`SIGNATURE:
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`4
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`BY:
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`(1/12»:/4/Q1
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`TITLE:
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`~
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`DATE:
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`522- /5 i
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`1
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`
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`2818101_1.DOCX