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Falk W. Doering
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Stafford, TX, US
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Patents Grants
last 30 patents
Information
Patent Grant
Constant force actuator
Patent number
7,334,642
Issue date
Feb 26, 2008
Schlumberger Technology Corporation
Falk W. Doering
E21 - EARTH DRILLING MINING
Information
Patent Grant
Chain drive system
Patent number
7,222,682
Issue date
May 29, 2007
Schlumberger Technology Corp.
Falk W. Doering
F16 - ENGINEERING ELEMENTS AND UNITS GENERAL MEASURES FOR PRODUCING AND MAINT...
Information
Patent Grant
Traction control for downhole tractor
Patent number
7,185,714
Issue date
Mar 6, 2007
Schlumberger Technology Corp.
Falk W. Doering
E21 - EARTH DRILLING MINING
Information
Patent Grant
Open hole tractor with tracks
Patent number
7,156,192
Issue date
Jan 2, 2007
Schlumberger Technology Corp.
Julio C. Guerrero
E21 - EARTH DRILLING MINING
Information
Patent Grant
Traction control for downhole tractor
Patent number
7,143,843
Issue date
Dec 5, 2006
Schlumberger Technology Corp.
Falk W. Doering
E21 - EARTH DRILLING MINING
Patents Applications
last 30 patents
Information
Patent Application
Well Wall Gripping Element
Publication number
20080202769
Publication date
Aug 28, 2008
Wade D. Dupree
E21 - EARTH DRILLING MINING
Information
Patent Application
CONSTANT FORCE ACTUATOR
Publication number
20060180318
Publication date
Aug 17, 2006
Falk W. Doering
E21 - EARTH DRILLING MINING
Information
Patent Application
Traction control for downhole tractor
Publication number
20060151212
Publication date
Jul 13, 2006
Falk W. Doering
E21 - EARTH DRILLING MINING
Information
Patent Application
Chain drive system
Publication number
20050263325
Publication date
Dec 1, 2005
Falk W. Doering
E21 - EARTH DRILLING MINING
Information
Patent Application
Traction control for downhole tractor
Publication number
20050145415
Publication date
Jul 7, 2005
Falk W. Doering
E21 - EARTH DRILLING MINING
Information
Patent Application
Open hole tractor with tracks
Publication number
20050034874
Publication date
Feb 17, 2005
Julio C. Guerrero
E21 - EARTH DRILLING MINING