Legal Opinion

Karl Ziegler, Plaintiff-Appellant-Cross-Appellee v. Phillips Petroleum Company, Defendant-Appellee-Cross-Appellant

Court of Appeals for the Fifth Circuit

Decided December 3, 1973No. 71-2650PublishedCited by 90 opinions

1Opinion of the Court

RONEY, Circuit Judge:

This patent infringement suit involves two patents claiming chemical catalysts. We affirm the District Court’s finding of noninfringement as to one patent, but reverse as to the other.

Catalysts are chemical substances that affect the rate or course of a given chemical reaction in some manner without becoming a significant part of the resulting product. In this case, both catalysts find wide application in the petrochemical field and are used to cause small molecules of gases or liquids to react together to form solid plasties and synthetic rubbers from which commercially…

2Cases cited64 opinions

  1. Graham v. John Deere Co. of Kansas CitySupreme Court of the United States · 1966
  2. Graver Tank & Mfg. Co. v. Linde Air Products Co.Supreme Court of the United States · 1950
  3. Continental Paper Bag Co. v. Eastern Paper Bag Co.Supreme Court of the United States · 1908
  4. MacHine Co. v. MurphySupreme Court of the United States · 1878
  5. Sanitary Refrigerator Co. v. WintersSupreme Court of the United States · 1929

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3Cited by90 opinions

  1. Atlas Powder Company v. E.I. Du Pont De Nemours & Company and Alamo Explosives Company, Inc.Court of Appeals for the Federal Circuit · 1984
  2. A.B. Dick Company v. Burroughs CorporationCourt of Appeals for the Federal Circuit · 1983
  3. Studiengesellschaft Kohle Mbh, as Trustee for the Max-Planck-Institut Fur Kohlenforschung v. Eastman Kodak CompanyCourt of Appeals for the Fifth Circuit · 1980
  4. Placid Oil Company, Sola II v. Federal Power CommissionCourt of Appeals for the Fifth Circuit · 1973
  5. Studiengesellschaft Kohle, M.B.H. v. Dart Industries, Inc., and Kraft, Inc., Defendants/cross-AppellantsCourt of Appeals for the Federal Circuit · 1988

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