Pittsburgh Reduction Co. v. Cowles Electric Smelting & Aluminum Co.
U.S. Circuit Court for the District of Northern Ohio
In Equity. Bill to restrain infringement of patent.
1Opinion of the Court
TAFT, Circuit Judge.
This is a suit in equity by the Pittsburgh Reduction Company against the Cowles Electric Smelting & Aluminum Company, to restrain the infringement of a patent process for reducing aluminum, by electrolysis, (letters patent Ho. 400,766,) owned by the complainant under an assignment from the original Xiatentee, Charles M. Hall. The patent was applied for July 9, 1886, and was granted April 2, 1889. The defenses to the suit are; First, that the patent is invalid for want of novelty, and, second, that the defendant does not infringe.
Electrolysis is a process for separating a…
2Cases cited5 opinions
- Tilghman v. ProctorSupreme Court of the United States · 1881
- Coffin v. OgdenSupreme Court of the United States · 1874
- Morley Sewing MacHine Co. v. LancasterSupreme Court of the United States · 1889
- Corning v. BurdenSupreme Court of the United States · 1854
- Sessions v. RomadkaSupreme Court of the United States · 1892
3Cited by17 opinions
- Eibel Process Co. v. Minnesota & Ontario Paper Co.Supreme Court of the United States · 1923
- Wickelman v. A. B. Dick Co.Court of Appeals for the Second Circuit · 1898
- Pittsburgh Reduction Co. v. Cowles Electric Smelting & Aluminum Co.U.S. Circuit Court for the District of Northern Ohio · 1894
- United States v. Aluminum Co. of AmericaDistrict Court, S.D. New York · 1941
- Chisholm v. JohnsonU.S. Circuit Court for the District of Delaware · 1901
12 more not listed; retrieve them via the Exa API.