Legal Opinion
James C. Hobbs v. Wisconsin Power & Light Company and William Powell Company
Court of Appeals for the Seventh Circuit
Decided December 6, 1957No. 11973_1PublishedCited by 49 opinions
1Opinion of the Court
HASTINGS, Circuit Judge.
This action was brought to enjoin and to seek an accounting for damages resulting from alleged infringement of two patents on inventions relating to valves and joint seals for large flows of high temperature, high pressure fluids. Appellant, James C. Hobbs, maintains that William Powell Company, by manufacturing and selling certain valves and joint seals, and the Wisconsin Power and Light Company, by buying and using these same accused structures, have infringed the patents in suit. The district court held that claims 1 through 10, 12 through 15, 17, 19, 20, 22 and 23…
2Cases cited31 opinions
- Graver Tank & Mfg. Co. v. Linde Air Products Co.Supreme Court of the United States · 1950
- Great Atlantic & Pacific Tea Co. v. Supermarket Equipment Corp.Supreme Court of the United States · 1951
- Eibel Process Co. v. Minnesota & Ontario Paper Co.Supreme Court of the United States · 1923
- Elizabeth v. Pavement Co.Supreme Court of the United States · 1878
- Lincoln Engineering Co. v. Stewart-Warner Corp.Supreme Court of the United States · 1938
26 more not listed; retrieve them via the Exa API.
3Cited by49 opinions
- Armour & Co. v. Wilson & Co., Inc.Court of Appeals for the Seventh Circuit · 1960
- McCullough Tool Co. v. Well Surveys, Inc.Court of Appeals for the Tenth Circuit · 1965
- Terrell J. Reese and Reese Products, Inc. v. Elkhart Welding and Boiler Works, Inc.Court of Appeals for the Seventh Circuit · 1971
- A R Inc. v. Electro-Voice, IncorporatedCourt of Appeals for the Seventh Circuit · 1962
- Scott Paper Company, and Cross-Appellee v. Fort Howard Paper Company, and Cross-AppellantCourt of Appeals for the Seventh Circuit · 1970
44 more not listed; retrieve them via the Exa API.