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George B. Witman
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Sugar Land, TX, US
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Patents Grants
last 30 patents
Information
Patent Grant
Single cone rock bit having inserts adapted to maintain hole gage d...
Patent number
7,690,446
Issue date
Apr 6, 2010
Smith International, Inc.
George B. Witman
E21 - EARTH DRILLING MINING
Information
Patent Grant
Single cone rock bit having inserts adapted to maintain hole gage d...
Patent number
7,401,668
Issue date
Jul 22, 2008
Smith International, Inc.
George Bodo Witman
E21 - EARTH DRILLING MINING
Information
Patent Grant
Single cone rock bit having inserts adapted to maintain hole gage d...
Patent number
7,100,711
Issue date
Sep 5, 2006
Smith International, Inc.
George B. Witman
E21 - EARTH DRILLING MINING
Information
Patent Grant
One cone bit with interchangeable cutting structures, a box-end con...
Patent number
6,814,162
Issue date
Nov 9, 2004
Smith International, Inc.
David P. Moran
E21 - EARTH DRILLING MINING
Information
Patent Grant
Single-cone rock bit having cutting structure adapted to improve ho...
Patent number
6,719,073
Issue date
Apr 13, 2004
Smith International, Inc.
Ying Xiang
E21 - EARTH DRILLING MINING
Patents Applications
last 30 patents
Information
Patent Application
SINGLE CONE ROCK BIT HAVING INSERTS ADAPTED TO MAINTAIN HOLE GAGE D...
Publication number
20080121435
Publication date
May 29, 2008
Smith International, Inc.
George B. Witman
E21 - EARTH DRILLING MINING
Information
Patent Application
Single cone rock bit having inserts adapted to maintain hole gage d...
Publication number
20070107946
Publication date
May 17, 2007
Smith International, Inc.
George B. Witman
E21 - EARTH DRILLING MINING
Information
Patent Application
Cutting element arrangement for single roller cone bit
Publication number
20050109543
Publication date
May 26, 2005
George Witman
E21 - EARTH DRILLING MINING
Information
Patent Application
One cone bit with interchangeable cutting structures, a box-end con...
Publication number
20040026124
Publication date
Feb 12, 2004
David P. Moran
E21 - EARTH DRILLING MINING
Information
Patent Application
Single cone rock bit having inserts adapted to maintain hole gage d...
Publication number
20030217868
Publication date
Nov 27, 2003
George B. Witman
E21 - EARTH DRILLING MINING
Information
Patent Application
Single-cone rock bit having cutting structure adapted to improve ho...
Publication number
20030217867
Publication date
Nov 27, 2003
Ying Xiang
E21 - EARTH DRILLING MINING