`
`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. 7,412,416 B2
`
`INTERACTIVE BROKERS 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- 145
`
`
`
`U.S. Patent No. 7,412,416 B2
`
`Pursuant to 37 C.F.R. § 42.l0(b), Petitioner Interactive Brokers LLC, having
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`a principle place of business at One Pickwick Plaza, Greenwich, CT 06830, hereby
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`appoints the practitioners of Customer No. 26111 as its attorneys to transact all
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`business in the United States Patent & Trademark Office associated with the 5
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`covered business method review of U.S. Patent No. 7,412,416 B2. These attorneys
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`include at least:
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`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. 200005
`202.371.2600 (reception)
`202.371.2540 (fascimile)
`rsokohl-PTAB@skgf.com
`lgordon-PTAB @skgf.com
`rbemben-PTAB@skgf.com
`
`FOR:
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`/4/757957/rt‘ .672/rsrax 24 5
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`SIGNATURE:
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`~.
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`BY:
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`fit//(41267 ((10155.,1)g!
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`TITLE:
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`flux/Jg éfa/£491 [ctr-VIE!
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`DATE:
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`61>’-/6
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`2818107_1.DOCX