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Randall R. Price
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Houston, TX, US
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Patents Grants
last 30 patents
Information
Patent Grant
Rock bit lubricant relief valve
Patent number
6,138,778
Issue date
Oct 31, 2000
Camco International Inc.
Randall Ray Price
E21 - EARTH DRILLING MINING
Information
Patent Grant
Rock bit cutter retainer with differentially pitched threads
Patent number
5,853,245
Issue date
Dec 29, 1998
Camco International Inc.
Randall R. Price
E21 - EARTH DRILLING MINING
Information
Patent Grant
Automatic cementing system with improved density control
Patent number
5,775,803
Issue date
Jul 7, 1998
Stewart & Stevenson Services, Inc.
Clifford Stanley Montgomery
B28 - WORKING CEMENT, CLAY, OR STONE
Information
Patent Grant
Automatic cementing system with improved density control
Patent number
5,624,182
Issue date
Apr 29, 1997
Stewart & Stevenson Services, Inc.
Michael P. Dearing
B28 - WORKING CEMENT, CLAY, OR STONE