Legal Opinion

Hughes Tool Company, Plaintiff-Appellant-Cross v. G. W. Murphy Industries, Inc., Defendant-Appellee-Cross

Court of Appeals for the Fifth Circuit

Decided March 12, 1974No. 72-3143PublishedCited by 23 opinions

1Opinion of the Court

WISDOM, Circuit Judge:

In this patent infringement suit we face questions of liability and the proper measure of damages. Hughes Tool Company, the plaintiff-appellant, sued to recover damages for infringement of its patent covering a steel and rubber seal which protects the bearings of rotating drill bits used in drilling oil wells. The district court found that G. W. Murphy Industries, Inc., the defendant-cross appellant, had infringed the patent in suit and should compensate Hughes Tool by paying a reasonable royalty. On appeal Murphy challenges the finding of liability; Hughes challenges…

2Cases cited17 opinions

  1. Georgia-Pacific Corporation v. U. S. Plywood-Champion Papers Inc.Court of Appeals for the Second Circuit · 1971
  2. Garretson v. ClarkSupreme Court of the United States · 1884
  3. Livesay Window Company, Inc. v. Livesay Industries, Inc., and Everett G. Livesay Window Company, Inc.Court of Appeals for the Fifth Circuit · 1958
  4. United States Frumentum Co. v. LauhoffCourt of Appeals for the Sixth Circuit · 1914
  5. Faulkner v. GibbsCourt of Appeals for the Ninth Circuit · 1952

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3Cited by23 opinions

  1. Panduit Corp. v. Stahlin Bros. Fibre Works, Inc.Court of Appeals for the Sixth Circuit · 1978
  2. State Industries, Inc., Plaintiff/cross-Appellant v. Mor-Flo Industries, Inc. And American Appliance Mfg. Corp.Court of Appeals for the Federal Circuit · 1989
  3. University Computing Co. v. Lykes-Youngstown Corp.Court of Appeals for the Fifth Circuit · 1974
  4. Milgo Electronic Corporation, a Florida Corporation v. United Business Communications, Inc., a Kansas Corporation, DefendantCourt of Appeals for the Tenth Circuit · 1980
  5. Yarway Corporation v. Eur-Control Usa, Inc., and Eur-Control Kalle, A.B.Court of Appeals for the Federal Circuit · 1985

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

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