United States Federal Circuit
UNION PAC. RESOURCES CO. v. CHESAPEAKE ENERGY CORP., 00-1053, 00-1059
Substantial evidence in the record supported district court's findings that patent was invalid for non-enablement and indefiniteness. Lay witnesses who contributed to prior art may testify as to opinion based on personal experiences under Fed. R. Evid. 701.
Appellate Information
- Decided 01/05/2001
- Published 01/05/2001
Judges
- RADER, Circuit Judge., Before MICHEL, LOURIE, and RADER, Circuit Judges.
Court
- United States Federal Circuit
Counsel
- For Appellant:
- Ronald G. Bliss,Fulbright & Jaworski L.L.P., of Houston, TX, argued for plaintiff-appellant. With him on the brief was William J. Boyce.
- For Appellees:
- William L. LaFuze, Vinson & Elkins L.L.P., of Houston, TX, argued for defendants-cross appellants. With him on the brief were Steven R. Borgman, and Gwendolyn J. Samora.