Otto Coking Co. v. Koppers Co.
Court of Appeals for the Third Circuit
Apjieal from the District Court of the United States for the District of Delaware; Charles P. Orr, District Judge, specially assigned. Suit by the Koppers Company against the Otto Coking Company, Incorporated, and the Wilputte Coke Oven Corporation, with counterclaim by defendants.
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Apjieal from the District Court of the United States for the District of Delaware; Charles P. Orr, District Judge, specially assigned. Suit by the Koppers Company against the Otto Coking Company, Incorporated, and the Wilputte Coke Oven Corporation, with counterclaim by defendants. From a decree holding valid and infringed claims 1 and 5 of complainant’s letters patent No. 818,033 issued April 17, 1906, to Heinrich Koppers for improvements in by-product coke ovens, and dismissing the counterclaim for infringement of defendant’s letters patent No. • 673,928, issued to Schniewind, defendants…
1Opinion of the Court
WOOLLEY, Circuit Judge.
This appeal is from a decree of the District Court holding valid and infringed claims 1 and 5 of the complainant’s Letters Patent, No. 818,033, issued April 17, 1906, to Heinrich Koppers, for improvements in by-product coke-ovens, and dismissing a counterclaim of infringement of defendant’s Letters Patent, No. 673,928, issued to Schniewind.
The defenses pleaded respectively to the claim and counterclaim of infringement are: (1) Non-infringement; and (2) invalidity of the patent claims in suit, both for anticipation and lack of patentable invention.
Though the decision in…
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- United States v. Chemical Foundation, Inc.Court of Appeals for the Third Circuit · 1925
- Samuel M. Langston Co. v. F. X. Hooper Co.District Court, D. Maryland · 1934
- Chapman-Stein Co. v. Rust Engineering Co.Court of Appeals for the Third Circuit · 1932
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