Robert Wagoner

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Ponca City, OK, US

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Patents Grantslast 30 patents

Information Patent Grant
Rock drill bit with back-reaming protection
- Patent number 6,116,357
- Issue date Sep 12, 2000
- Smith International, Inc.
- Robert Wagoner
- E21 - EARTH DRILLING MINING
Information Patent Grant
Thrust disc bearings for rotary cone air bits
- Patent number 5,868,502
- Issue date Feb 9, 1999
- Smith International, Inc.
- Peter T. Cariveau
- E21 - EARTH DRILLING MINING
Information Patent Grant
Thrust plugs for rotary cone air bits
- Patent number 5,642,942
- Issue date Jul 1, 1997
- Smith International, Inc.
- Robert Wagoner
- E21 - EARTH DRILLING MINING