Makohl; Friedhelm

Patent Applications and Registrations

Patent applications and USPTO patent grants for Makohl; Friedhelm.The latest application filed is for "formation resistivity measurement sensor contained onboard a drill bit (resistivity in bit)".

Company Profile

0.12.4

Makohl; Friedhelm - Hermannsburg DE
Makohl; Friedhelm - Celle DE
Makohl; Friedhelm - Hermmansburg DE
Makohl; Friedhelm - Hermannsberg DE

*profile and listings may contain filings by different individuals or companies with the same name. Review application materials to confirm ownership/assignment.

Patent Activity

Patent	Date
Drilling and cementing casing system Grant 7,234,546 - Vincent , et al. June 26, 2	2007-06-26
Formation resistivity measurement sensor contained onboard a drill bit (resistivity in bit) Grant 6,850,068 - Chemali , et al. February 1, 2	2005-02-01
Formation resistivity measurement sensor contained onboard a drill bit (resistivity in bit) App 20040104726 - Chemali, Roland E. ; et al.	2004-06-03
Drilling and cementing casing system App 20040003944 - Vincent, Ray P. ; et al.	2004-01-08
Apparatus and method for simultaneous drilling and casing wellbores App 20030056991 - Hahn, Detlef ; et al.	2003-03-27
Apparatus and method for simultaneous drilling and casing wellbores Grant 6,419,033 - Hahn , et al. July 16, 2	2002-07-16
Method of creating a downhole sealing and hanging device Grant 6,390,201 - Coon , et al. May 21, 2	2002-05-21
Thruster Responsive To Drilling Parameters App 20010045300 - FINCHER, ROGER ; et al.	2001-11-29
Method and apparatus for drilling boreholes in earth formations (drilling liner systems) Grant 6,196,336 - Fincher , et al. March 6, 2	2001-03-06
Variable injector Grant 5,890,534 - Burge , et al. April 6, 1	1999-04-06
Universal pipe and tubing injection apparatus and method Grant 5,875,850 - Burge , et al. March 2, 1	1999-03-02
Coiled tubing apparatus Grant 5,845,708 - Burge , et al. December 8, 1	1998-12-08
Universal pipe and tubing injection apparatus and method Grant 5,823,267 - Burge , et al. October 20, 1	1998-10-20
Universal pipe and tubing injection apparatus and method Grant 5,738,173 - Burge , et al. April 14, 1	1998-04-14
Process and drilling equipment for sinking a well in underground rock formations Grant 5,205,364 - Juergens , et al. April 27, 1	1993-04-27
Core drilling tool for boreholes in rock Grant 4,773,489 - Makohl September 27, 1	1988-09-27

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