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Elis Vandenberg
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Sherwood Park, CA
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Patents Grants
last 30 patents
Information
Patent Grant
Steerable rotary drilling device
Patent number
6,640,909
Issue date
Nov 4, 2003
Halliburton Energy Services, Inc.
Elis Vandenberg
E21 - EARTH DRILLING MINING
Information
Patent Grant
Steerable rotary drilling device
Patent number
6,415,878
Issue date
Jul 9, 2002
Halliburton Energy Services, Inc.
Edward James Cargill
E21 - EARTH DRILLING MINING
Information
Patent Grant
Steerable rotary directional drilling method
Patent number
6,340,063
Issue date
Jan 22, 2002
Halliburton Energy Services, Inc.
Laurier E. Comeau
E21 - EARTH DRILLING MINING
Information
Patent Grant
Steerable rotary drilling device and directional drilling method
Patent number
6,244,361
Issue date
Jun 12, 2001
Halliburton Energy Services, Inc.
Laurier E. Comeau
E21 - EARTH DRILLING MINING
Information
Patent Grant
Fail-safe coupling for a latch assembly
Patent number
6,202,746
Issue date
Mar 20, 2001
Dresser Industries, Inc.
Elis Vandenberg
E21 - EARTH DRILLING MINING
Information
Patent Grant
Multicut casing window mill and method for forming a casing window
Patent number
5,778,980
Issue date
Jul 14, 1998
Baroid Technology, Inc.
Laurier E. Comeau
E21 - EARTH DRILLING MINING
Information
Patent Grant
Internal pressure sleeve for use with easily drillable exit ports
Patent number
5,615,740
Issue date
Apr 1, 1997
Baroid Technology, Inc.
Laurier E. Comeau
E21 - EARTH DRILLING MINING
Information
Patent Grant
Keyless latch for orienting and anchoring downhole tools
Patent number
5,579,829
Issue date
Dec 3, 1996
Baroid Technology, Inc.
Laurier E. Comeau
E21 - EARTH DRILLING MINING
Patents Applications
last 30 patents
Information
Patent Application
Steerable rotary drilling device
Publication number
20020195278
Publication date
Dec 26, 2002
Halliburton Energy Services, Inc.
Elis Vandenberg
E21 - EARTH DRILLING MINING
Information
Patent Application
Steerable rotary drilling device and directional drilling method
Publication number
20020043372
Publication date
Apr 18, 2002
Edward James Cargill
E21 - EARTH DRILLING MINING