Legal Opinion
The Robbins Company, Cross-Appellant v. Dresser Industries, Inc., Cross-Appellee
Court of Appeals for the Fifth Circuit
Decided June 27, 1977No. 75-2653PublishedCited by 18 opinions
1Opinion of the Court
CLARK, Circuit Judge:
Defendant, Dresser Industries, Inc. (Dresser), appeals from the district court’s judgment entered pursuant to a jury’s finding that Dresser infringed claims 1, 2, and 4 of U.S. Patent No. 3,220,494 of plaintiff, The Robbins Company (Robbins). We reverse on the ground that Robbins’s combination patent, which describes a method of “raise” drilling, is obvious and thus invalid under 35 U.S.C. § 103. 1
A raise is a “shaft” which connects the surface of the earth or an upper mining tunnel or “level” with a lower mining level. In multi-level mining operations, these connecting…
2Cases cited11 opinions
- Graham v. John Deere Co. of Kansas CitySupreme Court of the United States · 1966
- Great Atlantic & Pacific Tea Co. v. Supermarket Equipment Corp.Supreme Court of the United States · 1951
- Hotchkiss v. GreenwoodSupreme Court of the United States · 1851
- Anderson's-Black Rock, Inc. v. Pavement Salvage Co.Supreme Court of the United States · 1969
- Sakraida v. Ag Pro, Inc.Supreme Court of the United States · 1976
6 more not listed; retrieve them via the Exa API.
3Cited by18 opinions
- Control Components, Inc., and Richard E. Self v. Valtek, Inc. And Alpha Engineering CompanyCourt of Appeals for the Fifth Circuit · 1980
- Duplan Corp. v. Deering Milliken, Inc.District Court, D. South Carolina · 1977
- Cathodic Protection Service v. American Smelting & Refining Company, Federated Metals Corporation and Waynes Broyles Engineering CompanyCourt of Appeals for the Fifth Circuit · 1979
- John Zink Company, Cross-Appellant v. National Airoil Burner Company, Inc., Cross-AppelleeCourt of Appeals for the Fifth Circuit · 1980
- Rohm and Haas Co. v. Dawson Chemical Co., Inc.District Court, S.D. Texas · 1983
13 more not listed; retrieve them via the Exa API.