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INVESTMENT TECH. GROUP v. LIQUIDNET HOLDINGS, INC.

Nos. 07 Civ. 510(SAS), 07 Civ. 6886(SAS).

759 F.Supp.2d 387 (2010)

INVESTMENT TECHNOLOGY GROUP, INC., ITG Inc., ITG Solutions Network, Inc., and the MacGregor Group, Inc., Plaintiffs/Counterclaim-Defendants, v. LIQUIDNET HOLDINGS, INC., Defendant/Counterclaim-Plaintiff. Liquidnet Holdings, Inc., Plaintiff/Counterclaim-Defendant, v. Pulse Trading, Inc., Defendant/Counterclaim-Plaintiff.

United States District Court, S.D. New York.

December 21, 2010.

Attorney(s) appearing for the Case

Steven M. Lieberman, Esq., Daniel Leavitt Shores, Esq., Brian A. Tollefson, Esq., R. Elizabeth Brenner-Leifer, Esq., Joseph A. Hynds, Esq., Martin M. Zoltick, Esq., Rothwell, Figg, Ernst & Manbeck, P.C., Washington, D.C., Eric Jonathan Seiler, Esq., Friedman, Kaplan, Seiler and Adelman, New York, NY, for Investment Technology Group, Inc., ITG, Inc., ITG Solutions Network, Inc., and the MacGregor Group, Inc.

Robert R. Gilman, Esq., Thomas J. Clark, Esq., Paul J. Hayes, Esq., Mintz Levin Cohn Ferris Glovsky & Popeo, P.C., Boston, MA, Kevin N. Ainsworth, Esq., Mintz Levin Cohn Ferris Glovsky & Popeo, P.C., New York, NY, for Pulse Trading, Inc.

Michael A. Nicodema, Esq., Gaston Kroub, Esq., Greenberg Traurig, LLP, New York, NY, Mary Olga Lovett, Esq., Greenberg Traurig, LLP, Houston, TX, for Liquidnet Holdings, Inc.

OPINION & ORDER

SHIRA A. SCHEINDLIN, District Judge.

I. INTRODUCTION

This opinion resolves four motions for summary judgment involving claim one of a method patent1 owned by Liquidnet Holdings, Inc. ("Liquidnet"). In brief, Liquidnet has alleged that certain electronic methods for integrating buy-side firms' order management systems with electronic securities marketplaces, developed and marketed by Investment...

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