Legal Opinion
E. I. Du Pont De Nemours & Company v. Berkley and Company, Inc., E. I. Du Pont De Nemours & Company v. Berkley and Company, Inc.
Court of Appeals for the Eighth Circuit
Decided March 17, 1980No. 79-1219, 79-1231PublishedCited by 147 opinions
1Opinion of the Court
MARKEY, Chief Judge.
E. I. du Pont de Nemours & Company (DuPont) appeals from a judgment holding invalid its United States patent No. 3,063,189 (DuPont patent). Berkley & Company, Inc. (Berkley) appeals the dismissal of its antitrust counterclaim and denial of its motion for attorney’s fees and costs. We reverse the judgment of invalidity, remand for a new trial on that issue, and affirm the dismissal of the counterclaim. 1
Background
The patent in suit, like most patents, discloses a proposed solution for a problem. When colored fishing lines are used, to enable the fisherman to see them above…
2Cases cited106 opinions
- Conley v. GibsonSupreme Court of the United States · 1957
- Kotteakos v. United StatesSupreme Court of the United States · 1946
- Graham v. John Deere Co. of Kansas CitySupreme Court of the United States · 1966
- Blonder-Tongue Laboratories, Inc. v. University of Illinois FoundationSupreme Court of the United States · 1971
- Great Atlantic & Pacific Tea Co. v. Supermarket Equipment Corp.Supreme Court of the United States · 1951
101 more not listed; retrieve them via the Exa API.
3Cited by147 opinions
- American Hoist & Derrick Company, Cross-Appellee v. Sowa & Sons, Inc., Cross-AppellantCourt of Appeals for the Federal Circuit · 1984
- MCI Communications Corporation and MCI Telecommunications Corporation v. American Telephone and Telegraph CompanyCourt of Appeals for the Seventh Circuit · 1983
- Romero v. KPH Consolidation, Inc.Texas Supreme Court · 2005
- Gaylon Hofer v. Mack Trucks, Inc.Court of Appeals for the Eighth Circuit · 1993
- Atlas Powder Company v. E.I. Du Pont De Nemours & Company and Alamo Explosives Company, Inc.Court of Appeals for the Federal Circuit · 1984
142 more not listed; retrieve them via the Exa API.