Vernon T. Richey

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Houston, TX, US

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Patents Grantslast 30 patents

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Apparatus for use in maintaining a well pipe centered within a well...
- Patent number 4,363,360
- Issue date Dec 14, 1982
- Vernon T. Richey
- E21 - EARTH DRILLING MINING
Information Patent Grant
Releasable drill string stabilizer
- Patent number 4,258,804
- Issue date Mar 31, 1981
- Vernon T. Richey
- E21 - EARTH DRILLING MINING
Information Patent Grant
Releasable drill string stabilizer
- Patent number 4,131,167
- Issue date Dec 26, 1978
- Vernon T. Richey
- E21 - EARTH DRILLING MINING
Information Patent Grant
Releasable drill string stabilizer
- Patent number 4,105,262
- Issue date Aug 8, 1978
- Vernon T. Richey
- E21 - EARTH DRILLING MINING
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Tool for fishing an object from a bore hole
- Patent number 4,101,157
- Issue date Jul 18, 1978
- Vernon T. Richey
- E21 - EARTH DRILLING MINING
Information Patent Grant
Apparatus for reducing annular back pressure near the drill bit
- Patent number 4,049,066
- Issue date Sep 20, 1977
- Vernon T. Richey
- E21 - EARTH DRILLING MINING