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APTIX CORPORATION v. QUICKTURN DESIGN SYS.

Nos. 00-1468, 00-1469.

269 F.3d 1369 (2001)

APTIX CORPORATION, Plaintiff/Counterclaim Defendant-Appellant, and Meta Systems, Inc., Plaintiff/Counterclaim Defendant-Appellant, and Mentor Graphics Corporation, Counterclaim Defendant, v. QUICKTURN DESIGN SYSTEMS, INC., Defendant/Counterclaimant-Appellee.

United States Court of Appeals, Federal Circuit.

Rehearing Denied December 11, 2001.

Attorney(s) appearing for the Case

Raphael V. Lupo, McDermott, Will & Emery, of Washington, DC, argued for plaintiff/counterclaim defendant-appellant Aptix Corporation. With him on the brief were Donna M. Tanguay, Mark G. Davis, and M. Miller Baker. Of counsel on the brief were Robert P. Taylor, Edwin H. Wheeler, and Erik K. Moller, Howrey Simon Arnold & White, LLP, of Menlo Park, CA.

Charles S. Crompton, Latham & Watkins, of Menlo Park, California, argued for plaintiff/counterclaim defendant-appellant Meta Systems, Inc. With him on the brief were David A. York, Rita A. Hao, and James L. Day.

J. Donald McCarthy, Lyon & Lyon LLP, of Los Angeles, California argued for defendant/counterclaimant-appellee Quick-turn Design Systems, Inc. With him on the brief was James C. Brooks. Of counsel on the brief were James W. Geriak, Lyon & Lyon LLP, of Irvine, California; and Jeffrey A. Miller, Lyon & Lyon LLP, of San Jose, CA.

Before MAYER, Chief Judge, RADER, and LINN, Circuit Judges.

Opinion for the court filed by Circuit Judge RADER. Chief Judge MAYER dissents-in-part.

RADER, Circuit Judge.

On June 14, 2000, the United States District Court for the Northern District of California dismissed the patent infringement complaint of Aptix Corporation and Meta Systems, Inc., after ruling that Aptix's United States Patent No. 5,544,069 ('069 patent) is unenforceable. The trial court refused to enforce...

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