Legal Opinion
Westinghouse Electric & Manufacturing Co. v. Formica Insulation Co.
Supreme Court of the United States
Decided December 8, 1924No. 102PublishedCited by 162 opinions
1Opinion of the CourtChief Justice Taft
The important question in this case is the operation of the principle of-'estoppel on the character of defense to which the assignor of a patented invention is limited in a suit for infringement by the assignee. We may first usefully consider the rule that should obtain where the assignment is made after the issue of the patent, and then the difference in the rule, if any, where the assignment was made before the granting of the patent.
Congress under its power to secure for limited times to inventors the exclusive right to their discoveries, has enacted laws conferring such an exclusive right…
2Cases cited26 opinions
- Miller v. Eagle Manufacturing Co.Supreme Court of the United States · 1894
- Littlefield v. PerrySupreme Court of the United States · 1875
- Agawam Co. v. JordanSupreme Court of the United States · 1869
- Boyd v. Janesville Hay Tool Co.Supreme Court of the United States · 1895
- United States Frumentum Co. v. LauhoffCourt of Appeals for the Sixth Circuit · 1914
21 more not listed; retrieve them via the Exa API.
3Cited by162 opinions
- Blonder-Tongue Laboratories, Inc. v. University of Illinois FoundationSupreme Court of the United States · 1971
- Lear, Inc. v. AdkinsSupreme Court of the United States · 1969
- Autogiro Company of America v. The United StatesUnited States Court of Claims · 1967
- Scott Paper Co. v. Marcalus Manufacturing Co.Supreme Court of the United States · 1945
- Thomas & Betts Corporation and Thomas & Betts Holdings, Inc. v. Panduit CorporationCourt of Appeals for the Seventh Circuit · 1998
157 more not listed; retrieve them via the Exa API.