1. Home
  2. Browse Decisions
  3. F.3d
  4. 236 F.3d
  5. 236 F.3d 684 (2001)
 

UNION PACIFIC RESOURCES v. CHESAPEAKE ENERGY CORP.

Nos. 00-1053, 00-1059.

236 F.3d 684 (2001)

UNION PACIFIC RESOURCES COMPANY, Plaintiff-Appellant, v. CHESAPEAKE ENERGY CORPORATION and Chesapeake Operating, Inc., Defendants-Cross-Appellants, and Chesapeake Exploration Limited Partnership, Defendant.

United States Court of Appeals, Federal Circuit.

DECIDED January 5, 2001.

Attorney(s) appearing for the Case

Ronald G. Bliss, Fulbright & Jaworski L.L.P., of Houston, Texas, argued for plaintiff-appellant. With him on the brief was William J. Boyce.

William L. LaFuze, Vinson & Elkins L.L.P., of Houston, Texas, argued for defendants-cross appellants. With him on the brief were Steven R. Borgman, and Gwendolyn J. Samora.

Before MICHEL, LOURIE, and RADER, Circuit Judges.

RADER, Circuit Judge.

Following a bench trial, the United States District Court for the Northern District of Texas held U.S. Patent No. 5,311,951 (the '951 patent) invalid for nonenablement and indefiniteness. Union Pac. Res. Co. v. Chesapeake, No. 4:96-CV-726-Y, 1999 WL 1466752 (N.D.Tex. Sept. 21, 1999) (UPRC). The trial court also determined that Chesapeake Energy Corporation, Chesapeake Operating, Inc., and Chesapeake Exploration Limited Partnership...

Let's get started

Leagle.com

Welcome to the leading source of independent legal reporting
Sign on now to see your case.
Or view more than 10 million decisions and orders.

  • Updated daily.
  • Uncompromising quality.
  • Complete, Accurate, Current.

Listed below are the cases that are cited in this Featured Case. Click the citation to see the full text of the cited case. Citations are also linked in the body of the Featured Case.

Cited Cases

  • No Cases Found

Listed below are those cases in which this Featured Case is cited. Click on the case name to see the full text of the citing case.

Citing Cases