Legal Opinion
W. L. Gore & Associates, Inc. v. Oak Materials Group, Inc.
District Court, D. Delaware
Decided November 16, 1976No. Civ. A. 75-180PublishedCited by 15 opinions
1Opinion of the Court
CALEB M. WRIGHT, Senior District Judge.
Plaintiff, W. L. Gore & Associates, Inc. 1 filed this action against defendant Oak Materials Group, Inc. in 1975, 2 alleging infringement of its U. S. Patent Number 3,664,915 covering expanded, extruded, un-sintered polytetrafluoroethylene (“PTFE”) tape. Defendant answered, denying infringement and asserting affirmative defenses of invalidity, fraud and estoppel. In addition, defendant counterclaimed for a declaratory judgment of invalidity, non-infringement and unenforceability. In August, 1976, plaintiff formally disclaimed all claims of the subject…
2Cases cited20 opinions
- Blonder-Tongue Laboratories, Inc. v. University of Illinois FoundationSupreme Court of the United States · 1971
- Altoona Publix Theatres, Inc. v. American Tri-Ergon Corp.Supreme Court of the United States · 1935
- Frederick H. Norton v. Lawrence E. CurtissCourt of Customs and Patent Appeals · 1971
- Monolith Portland Midwest Company, a Nevada Corporation v. Kaiser Aluminum & Chemical CorporationCourt of Appeals for the Ninth Circuit · 1969
- Park-In-Theatres, Inc. v. PerkinsCourt of Appeals for the Ninth Circuit · 1951
15 more not listed; retrieve them via the Exa API.
3Cited by15 opinions
- Reactive Metals and Alloys Corporation v. Esm, IncorporatedCourt of Appeals for the Federal Circuit · 1985
- Campbell v. Spectrum Automation Co.Court of Appeals for the Sixth Circuit · 1979
- Johnson & Johnson v. W. L. Gore & Associates, Inc.District Court, D. Delaware · 1977
- Gilbreth International Corp. v. Lionel Leisure, Inc.District Court, E.D. Pennsylvania · 1983
- Grefco, Inc. v. Kewanee Industries, Inc.District Court, D. Delaware · 1980
10 more not listed; retrieve them via the Exa API.