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Friedhelm Makohl
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Hermannsburg, DE
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Patents Grants
last 30 patents
Information
Patent Grant
Drilling and cementing casing system
Patent number
7,234,546
Issue date
Jun 26, 2007
Baker Hughes Incorporated
Ray P. Vincent
E21 - EARTH DRILLING MINING
Information
Patent Grant
Formation resistivity measurement sensor contained onboard a drill...
Patent number
6,850,068
Issue date
Feb 1, 2005
Baker Hughes Incorporated
Roland E. Chemali
G01 - MEASURING TESTING
Information
Patent Grant
Apparatus and method for simultaneous drilling and casing wellbores
Patent number
6,419,033
Issue date
Jul 16, 2002
Baker Hughes Incorporated
Detlef Hahn
E21 - EARTH DRILLING MINING
Information
Patent Grant
Method and apparatus for drilling boreholes in earth formations (dr...
Patent number
6,196,336
Issue date
Mar 6, 2001
Baker Hughes Incorporated
Roger Fincher
E21 - EARTH DRILLING MINING
Information
Patent Grant
Universal pipe and tubing injection apparatus and method
Patent number
6,032,744
Issue date
Mar 7, 2000
Baker Hughes Incorporated
Philip Burge
B65 - CONVEYING PACKING STORING HANDLING THIN OR FILAMENTARY MATERIAL
Information
Patent Grant
Variable injector
Patent number
5,890,534
Issue date
Apr 6, 1999
Baker Hughes Incorporated
Philip Burge
B65 - CONVEYING PACKING STORING HANDLING THIN OR FILAMENTARY MATERIAL
Information
Patent Grant
Universal pipe and tubing injection apparatus and method
Patent number
5,875,850
Issue date
Mar 2, 1999
Baker Hughes Incorporated
Philip Burge
B65 - CONVEYING PACKING STORING HANDLING THIN OR FILAMENTARY MATERIAL
Information
Patent Grant
Coiled tubing apparatus
Patent number
5,845,708
Issue date
Dec 8, 1998
Baker Hughes Incorporated
Philip Burge
B65 - CONVEYING PACKING STORING HANDLING THIN OR FILAMENTARY MATERIAL
Information
Patent Grant
Universal pipe and tubing injection apparatus and method
Patent number
5,823,267
Issue date
Oct 20, 1998
Baker Hughes Incorporated
Philip Burge
B65 - CONVEYING PACKING STORING HANDLING THIN OR FILAMENTARY MATERIAL
Information
Patent Grant
Universal pipe and tubing injection apparatus and method
Patent number
5,738,173
Issue date
Apr 14, 1998
Baker Hughes Incorporated
Philip Burge
B65 - CONVEYING PACKING STORING HANDLING THIN OR FILAMENTARY MATERIAL
Information
Patent Grant
Core drilling tool for boreholes in rock
Patent number
4,773,489
Issue date
Sep 27, 1988
Eastman Christensen Company
Friedhelm Makohl
E21 - EARTH DRILLING MINING
Patents Applications
last 30 patents
Information
Patent Application
Formation resistivity measurement sensor contained onboard a drill...
Publication number
20040104726
Publication date
Jun 3, 2004
Baker Hughes Incorporated
Roland E. Chemali
E21 - EARTH DRILLING MINING
Information
Patent Application
Drilling and cementing casing system
Publication number
20040003944
Publication date
Jan 8, 2004
Ray P. Vincent
E21 - EARTH DRILLING MINING
Information
Patent Application
Apparatus and method for simultaneous drilling and casing wellbores
Publication number
20030056991
Publication date
Mar 27, 2003
BAKER HUGHES INCORPORATED
Detlef Hahn
E21 - EARTH DRILLING MINING
Information
Patent Application
THRUSTER RESPONSIVE TO DRILLING PARAMETERS
Publication number
20010045300
Publication date
Nov 29, 2001
ROGER FINCHER
E21 - EARTH DRILLING MINING