Legal Opinion
Williams Iron Works Co. v. Hughes Tool Co.
Court of Appeals for the Tenth Circuit
Decided January 13, 1940No. 1892PublishedCited by 43 opinions
1Opinion of the Court
PHILLIPS, Circuit Judge.
Hughes Tool Company 1 brought this suit against Williams Iron Works Company 2 for alleged infringment of five patents. From a judgment holding the patents valid and infringed, Williams Company has appealed.
Each of the patents relates to rotary bits used in well drilling. In rotary drilling a bit is mounted at the lower end of the drill stem. The bit comprises a plurality of frusto-conical shaped cutters which, when the drill stem and bit are rotated, cut and disintegrate the formation being drilled. The cuttings are continuously washed from the hole being drilled by…
2Cases cited34 opinions
- Diamond Rubber Co. of New York v. Consolidated Rubber Tire Co.Supreme Court of the United States · 1911
- Topliff v. TopliffSupreme Court of the United States · 1892
- Sanitary Refrigerator Co. v. WintersSupreme Court of the United States · 1929
- Winans v. DenmeadSupreme Court of the United States · 1854
- Carnegie Steel Co. v. Cambria Iron Co.Supreme Court of the United States · 1902
29 more not listed; retrieve them via the Exa API.
3Cited by43 opinions
- McCullough Tool Co. v. Well Surveys, Inc.Court of Appeals for the Tenth Circuit · 1965
- Robertson Rock Bit Co. v. Hughes Tool Co.Court of Appeals for the Fifth Circuit · 1949
- Admiral Corporation v. Zenith Radio CorporationCourt of Appeals for the Tenth Circuit · 1961
- Jeoffroy Mfg., Inc. v. GrahamCourt of Appeals for the Fifth Circuit · 1953
- Oliver United Filters, Inc. v. SilverCourt of Appeals for the Tenth Circuit · 1953
38 more not listed; retrieve them via the Exa API.