William H. Sherwood

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County of Harris, TX, US

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Patents Grantslast 30 patents

Information Patent Grant
Drag-bit drilling with multi-axial tooth inserts
- Patent number 6,302,224
- Issue date Oct 16, 2001
- Halliburton Energy Services, Inc.
- William H. Sherwood
- E21 - EARTH DRILLING MINING
Information Patent Grant
Method and apparatus for improving drill bit stability
- Patent number 5,558,170
- Issue date Sep 24, 1996
- Baroid Technology, Inc.
- Gary M. Thigpen
- E21 - EARTH DRILLING MINING
Information Patent Grant
Drill bit having chip breaker polycrystalline diamond compact and h...
- Patent number 5,449,048
- Issue date Sep 12, 1995
- Baroid Technology, Inc.
- Gary M. Thigpen
- E21 - EARTH DRILLING MINING
Information Patent Grant
Drill bit having polycrystalline diamond compact cutter with spheri...
- Patent number 5,333,699
- Issue date Aug 2, 1994
- Baroid Technology, Inc.
- Gary M. Thigpen
- E21 - EARTH DRILLING MINING

Patents Applicationslast 30 patents

Information Patent Application
Methods of manufacturing and repairing rotary drill bits including...
- Publication number 20070158115
- Publication date Jul 12, 2007
- William H. Sherwood
- E21 - EARTH DRILLING MINING
Information Patent Application
Methods of manufacturing and repairing steel body rotary drill bits...
- Publication number 20060150777
- Publication date Jul 13, 2006
- William H. Sherwood
- E21 - EARTH DRILLING MINING
Information Patent Application
Cutting element retention apparatus for use in steel body rotary dr...
- Publication number 20050103533
- Publication date May 19, 2005
- William H. Sherwood
- E21 - EARTH DRILLING MINING