Legal Opinion
Chicago Pneumatic Tool Co. v. Hughes Tool Co.
Court of Appeals for the Tenth Circuit
Decided December 12, 1951No. 4153PublishedCited by 21 opinions
1Opinion of the Court
BRATTON, Circuit Judge.
Hughes Tool Company, hereinafter referred to as Hughes, brought this action against Chicago Pneumatic Tool Company, hereinafter referred to as Pneumatic, alleging infringement of claims 1, 2, and 3 of Fletcher patent No. 1,856,627; of claims I. 2, and 3 of Scott and Garfield patent No. 1,983,316; of claims 1, 2, and 3 of Scott patent No. 2,011,084; and of claims 4, 6, 8, 12, 13, 14, and 15 of Garfield and Scott patent No. 2,030,442. All of the patents relate to cone drills or cone cutters used in the drilling of deep wells for oil and gas. The defenses interposed to the…
2Cases cited16 opinions
- Root v. Railway Co.Supreme Court of the United States · 1882
- Railway Co. v. SaylesSupreme Court of the United States · 1878
- Schriber-Schroth Co. v. Cleveland Trust Co.Supreme Court of the United States · 1938
- Clark v. WoosterSupreme Court of the United States · 1886
- Rice & Adams Corp. v. LathropSupreme Court of the United States · 1929
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3Cited by21 opinions
- Robert Garfield v. NDCHealth CorporationCourt of Appeals for the Eleventh Circuit · 2006
- Richard W. Hostrop v. Board of Junior College District No. 515, Counties of Cook and Will and Stateof Illinois, a Body Politic and CorporateCourt of Appeals for the Seventh Circuit · 1975
- SCA Hygiene Products Aktiebolag v. First Quality Baby Products, LLCSupreme Court of the United States · 2017
- Mountain View Pharmacy v. Abbott LaboratoriesCourt of Appeals for the Tenth Circuit · 1980
- Ziegler v. AkinCourt of Appeals for the Tenth Circuit · 1958
16 more not listed; retrieve them via the Exa API.