Louis H. Barnard

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Pasadena, TX, US

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Patents Grantslast 30 patents

Information Patent Grant
Titanium carbide modified hardfacing for use on bearing surfaces of...
- Patent number 5,038,640
- Issue date Aug 13, 1991
- Hughes Tool Company
- Eric C. Sullivan
- B23 - MACHINE TOOLS METAL-WORKING NOT OTHERWISE PROVIDED FOR
Information Patent Grant
Downhole pressure fluctuating feedback system
- Patent number 4,775,016
- Issue date Oct 4, 1988
- Hughes Tool Company - USA
- Louis H. Barnard
- E21 - EARTH DRILLING MINING
Information Patent Grant
Impact tool with hydraulic cocking mechanism
- Patent number 4,256,187
- Issue date Mar 17, 1981
- Hughes Tool Company
- Louis H. Barnard
- B25 - HAND TOOLS PORTABLE POWER-DRIVEN TOOLS MANIPULATORS