Legal Opinion
Studiengesellschaft Kohle, M.B.H. v. Shell Oil Company, Defendant/cross-Appellant
Court of Appeals for the Federal Circuit
Decided June 27, 1997No. 96-1079PublishedCited by 39 opinions
1Opinion of the Court
RADER, Circuit Judge,
The United States District Court for the Southern District of Texas determined that claims 1-6 and 14 of U.S. Patent No. 4,125,-698 (’698 patent) are invalid, and that infringement of claim 13 by Shell Oil Company’s (Shell) polypropylene operations and infringement of claims 7, 9-12, and 15 by Shell’s polybutylene operations were not properly before the court. Studiengesellschaft Kohle m.b.H. (SGK), the owner of the ’698 patent, appeals these decisions. Further, the district court certified the following question under 28 U.S.C. § 1292(b) (1994):
Where the Court has found…
2Cases cited25 opinions
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- Lear, Inc. v. AdkinsSupreme Court of the United States · 1969
- Norman v. Apache Corp.Court of Appeals for the Fifth Circuit · 1994
- Vas-Cath Incorporated and Gambro, Inc. v. Sakharam D. Mahurkar, and Quinton Instruments CompanyCourt of Appeals for the Federal Circuit · 1991
- Raymond Keith Foster, Keith Mfg. Co., and Keith Sales, Co. v. Hallco Manufacturing Co., Inc., and Olof A. HallstromCourt of Appeals for the Federal Circuit · 1991
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3Cited by39 opinions
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