Legal Opinion
Milford A. Campbell, Plaintiff-Counter-Defendant v. Spectrum Automation Company, Defendant-Counter-Plaintiff
Court of Appeals for the Sixth Circuit
Decided April 17, 1975No. 74-2157PublishedCited by 15 opinions
1Opinion of the Court
PHILLIPS, Chief Judge.
Milford A. Campbell, the patentee -'of United States patent No. 3,002,600, brought this action against Spectrum Automation (Spectrum) for infringement. Spectrum counterclaimed, contending that the patent was invalid and that it therefore could not be infringed. District Judge Cornelia G. Kennedy held the patent to be invalid on a number of grounds. We affirm on one of these grounds — that Campbell was not . the inventor of the patent in suit.. The patent discloses an article that is used in material handling as a flexible feed track. Briefly described, wire is -wound in…
2Cases cited25 opinions
- Blonder-Tongue Laboratories, Inc. v. University of Illinois FoundationSupreme Court of the United States · 1971
- The Barbed Wire PatentSupreme Court of the United States · 1892
- Eibel Process Co. v. Minnesota & Ontario Paper Co.Supreme Court of the United States · 1923
- Coffin v. OgdenSupreme Court of the United States · 1874
- Radio Corp. of America v. Radio Engineering Laboratories, Inc.Supreme Court of the United States · 1934
20 more not listed; retrieve them via the Exa API.
3Cited by15 opinions
- Static Control Components, Inc. v. Lexmark International, Inc.Court of Appeals for the Sixth Circuit · 2012
- Campbell v. Spectrum Automation Co.Court of Appeals for the Sixth Circuit · 1979
- Eltra Corporation v. Basic IncorporatedCourt of Appeals for the Sixth Circuit · 1979
- Reynolds Metals Company v. Acorn Building Components, Inc.Court of Appeals for the Sixth Circuit · 1977
- Johnson & Johnson v. W. L. Gore & Associates, Inc.District Court, D. Delaware · 1977
10 more not listed; retrieve them via the Exa API.