Legal Opinion

Power Lift, Inc. v. Lang Tools, Inc. And Wendell Lang

Court of Appeals for the Federal Circuit

Decided October 7, 1985No. Appeal 85-777PublishedCited by 38 opinions

1Opinion of the Court

RICH, Circuit Judge.

This appeal is from the March 15, 1984, final judgment of the United States District Court for the Western District of Oklahoma, entered on a jury verdict, finding that Lang Tools, Inc. (Lang Tools), infringed Power Lift, Inc.’s (Power Lift) U.S. patent No. 4,305,467 (’467) entitled “Blow-out Preventer Lift System and Method,” issued to Douglas F. Villines’ assignor, Power Lift, and that Wendell Lang (Lang) actively induced Lang Tools infringement of the ’467 patent. Moreover, the jury found that Lang Tools’ infringement was willful. We affirm the judgment in all respects.

B…

2Cases cited8 opinions

  1. Envirotech Corporation v. Al George, Incorporated and Monosep, Inc.Court of Appeals for the Federal Circuit · 1984
  2. Railroad Dynamics, Inc., Appellant/cross-Appellee v. A. Stucki Company, Appellee/cross-AppellantCourt of Appeals for the Federal Circuit · 1984
  3. State Industries, Inc. v. A.O. Smith CorporationCourt of Appeals for the Federal Circuit · 1985
  4. Bio-Rad Laboratories, Inc., a Delaware Corporation, Cross v. Nicolet Instrument Corporation, a Wisconsin Corporation, Cross-AppelleeCourt of Appeals for the Federal Circuit · 1984
  5. Kenneth White v. Mar-Bel, Inc., and Mr. Dan MarshlackCourt of Appeals for the Fifth Circuit · 1975

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3Cited by38 opinions

  1. Orthokinetics, Inc. v. Safety Travel Chairs, Inc.Court of Appeals for the Federal Circuit · 1986
  2. S.C. Johnson & Son, Inc. v. Carter-Wallace, Inc., S.C. Johnson & Son, Inc. v. Carter-Wallace, Inc.Court of Appeals for the Federal Circuit · 1986
  3. Wordtech Systems, Inc. v. Integrated Networks Solutions, Inc.Court of Appeals for the Federal Circuit · 2010
  4. Kaufman Company, Inc. v. Lantech, Inc.Court of Appeals for the Federal Circuit · 1986
  5. Hall v. Bed Bath & Beyond, Inc.Court of Appeals for the Federal Circuit · 2013

33 more not listed; retrieve them via the Exa API.

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