Legal Opinion
Research Products Co. v. Tretolite Co.
Court of Appeals for the Ninth Circuit
Decided September 7, 1939No. 9058PublishedCited by 28 opinions
1Opinion of the Court
WILBUR, Circuit Judge.
This is an appeal from an interlocutory decree holding valid patent No. 1,467,831 issued September 11, 1923, to Wm. S. Bar-nickel, and holding that the patent had been infringed by the appellants. The patent covers a process for treating petroleum emulsions for the purpose of recovering the. oiLcontained in the emulsion. The appellees also alleged infringement of two other patents (Nos. 1,223,659, issued April 24, 1917, to Wm. S. Barnickel, and 1,596,-589 issued August 17, 1926, to Dr. Groote), but the charge was withdrawn as to those two patents, and the sole issues on…
2Cases cited25 opinions
- Elizabeth v. Pavement Co.Supreme Court of the United States · 1878
- Carnegie Steel Co. v. Cambria Iron Co.Supreme Court of the United States · 1902
- Carbice Corp. of America v. American Patents Development Corp.Supreme Court of the United States · 1931
- Corona Cord Tire Co. v. Dovan Chemical Corp.Supreme Court of the United States · 1928
- Smith & Griggs Manufacturing Co. v. SpragueSupreme Court of the United States · 1887
20 more not listed; retrieve them via the Exa API.
3Cited by28 opinions
- Pointer v. Six Wheel CorporationCourt of Appeals for the Ninth Circuit · 1949
- Stearns v. Tinker & RasorCourt of Appeals for the Ninth Circuit · 1955
- Hazeltine Corporation v. General Motors CorporationCourt of Appeals for the Third Circuit · 1942
- Rohm and Haas Co. v. Dawson Chemical Co., Inc.District Court, S.D. Texas · 1983
- Faulkner v. GibbsCourt of Appeals for the Ninth Circuit · 1948
23 more not listed; retrieve them via the Exa API.