John S. Childers

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Greenville, TX, US

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Patents Grantslast 30 patents

Information Patent Grant
Drill bit having offset roller cutters and improved nozzles
- Patent number 4,611,673
- Issue date Sep 16, 1986
- Reed Rock Bit Company
- John S. Childers
- E21 - EARTH DRILLING MINING
Information Patent Grant
Drill bit having angled nozzles
- Patent number 4,558,754
- Issue date Dec 17, 1985
- Reed Rock Bit Company
- John S. Childers
- E21 - EARTH DRILLING MINING
Information Patent Grant
Drill bit having angled nozzles for improved bit and well bore clea...
- Patent number 4,546,837
- Issue date Oct 15, 1985
- Reed Tool Company
- John S. Childers
- E21 - EARTH DRILLING MINING
Information Patent Grant
Drill bit having angled nozzles for improved bit and well bore clea...
- Patent number 4,516,642
- Issue date May 14, 1985
- Reed Rock Bit Company
- John S. Childers
- E21 - EARTH DRILLING MINING
Information Patent Grant
Thrust face bearing structure for rolling cutter drill bit
- Patent number 4,323,284
- Issue date Apr 6, 1982
- Reed Rock Bit Company
- John S. Childers
- E21 - EARTH DRILLING MINING