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Vincent W. Shotton
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Cordova, TN, US
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Patents Grants
last 30 patents
Information
Patent Grant
Back reaming tool
Patent number
7,137,460
Issue date
Nov 21, 2006
Smith International, Inc.
Robert H. Slaughter, Jr.
E21 - EARTH DRILLING MINING
Information
Patent Grant
Drill bit cutter element having multiple cusps
Patent number
6,929,079
Issue date
Aug 16, 2005
Smith International, Inc.
Scott McDonough
E21 - EARTH DRILLING MINING
Information
Patent Grant
Back reaming tool
Patent number
6,729,418
Issue date
May 4, 2004
Smith International, Inc.
Robert Harlan Slaughter
E21 - EARTH DRILLING MINING
Information
Patent Grant
Mounting attachment and bearing system for an industrial earth-bori...
Patent number
6,708,786
Issue date
Mar 23, 2004
Smith International, Inc.
Peter T. Cariveau
E21 - EARTH DRILLING MINING
Information
Patent Grant
Sealed bearing roller cone bit having anti-plugging device
Patent number
6,408,957
Issue date
Jun 25, 2002
Smith International, Inc.
Robert H. Slaughter
E21 - EARTH DRILLING MINING
Patents Applications
last 30 patents
Information
Patent Application
Drill bit and cutter element having multiple extensions
Publication number
20060011388
Publication date
Jan 19, 2006
Mohammed Boudrare
E21 - EARTH DRILLING MINING
Information
Patent Application
Back reaming tool
Publication number
20040188141
Publication date
Sep 30, 2004
Robert H. Slaughter
E21 - EARTH DRILLING MINING
Information
Patent Application
Drill bit cutter element having multiple cusps
Publication number
20040163851
Publication date
Aug 26, 2004
Smith International, Inc.
Scott McDonough
E21 - EARTH DRILLING MINING
Information
Patent Application
Mounting attachment and bearing system for an industrial earth-bori...
Publication number
20020166702
Publication date
Nov 14, 2002
Peter T. Cariveau
E21 - EARTH DRILLING MINING
Information
Patent Application
Back reaming tool
Publication number
20020108785
Publication date
Aug 15, 2002
Robert Harlan Slaughter
E21 - EARTH DRILLING MINING