Wayne A. Kovar

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Houston, TX, US

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Patents Grantslast 30 patents

Information Patent Grant
Well jar accelerator with expansion chamber
- Patent number 5,584,353
- Issue date Dec 17, 1996
- Bowen Tools, Inc.
- Roger D. Chancey
- E21 - EARTH DRILLING MINING
Information Patent Grant
Lock-down releasing spear assembly
- Patent number 4,706,745
- Issue date Nov 17, 1987
- Bowen Tools, Inc.
- Thomas R. Bishop
- E21 - EARTH DRILLING MINING
Information Patent Grant
Shock absorber assembly
- Patent number 4,439,167
- Issue date Mar 27, 1984
- Bowen Tools, Inc.
- Thomas R. Bishop
- E21 - EARTH DRILLING MINING
Information Patent Grant
Shock absorber assembly for absorbing shocks encountered by a drill...
- Patent number 4,387,885
- Issue date Jun 14, 1983
- Bowen Tools, Inc.
- Thomas R. Bishop
- E21 - EARTH DRILLING MINING

Patents Applicationslast 30 patents

Information Patent Application
Casing Patch and Seal
- Publication number 20100258311
- Publication date Oct 14, 2010
- Daniel T. Craig
- E21 - EARTH DRILLING MINING