Inventor
WARREN TOMMY M
US55 patents
⚠️ This page may combine multiple inventors who share the name “WARREN TOMMY M”. Patents are grouped by organization below to help distinguish them — per-person disambiguation is on the roadmap.
AMOCO CORP
31 patentsUS5042596AAug 27, 1991
Imbalance compensated drill bit
AMOCO CORP209 citations99
US5010789AApr 30, 1991
Method of making imbalanced compensated drill bit
AMOCO CORP228 citations99
US4932484AJun 12, 1990
Whirl resistant bit
AMOCO CORP200 citations99
US4854397AAug 8, 1989
System for directional drilling and related method of use
AMOCO CORP256 citations99
US5194859AMar 16, 1993
Apparatus and method for positioning a tool in a deviated section of a borehole
AMOCO CORP137 citations98
US5423389AJun 13, 1995
Curved drilling apparatus
AMOCO CORP211 citations97
US4815342AMar 28, 1989
Method for modeling and building drill bits
AMOCO CORP219 citations97
US5402856AApr 4, 1995
Anti-whirl underreamer
AMOCO CORP275 citations96
US5259468ANov 9, 1993
Method of dynamically monitoring the orientation of a curved drilling assembly and apparatus
AMOCO CORP74 citations96
USRE34435ENov 9, 1993
Whirl resistant bit
AMOCO CORP84 citations96
US5213168AMay 25, 1993
Apparatus for drilling a curved subterranean borehole
AMOCO CORP108 citations96
US5103919AApr 14, 1992
Method of determining the rotational orientation of a downhole tool
AMOCO CORP77 citations96
US4982802AJan 8, 1991
Method for stabilizing a rotary drill string and drill bit
AMOCO CORP110 citations96
US4905776AMar 6, 1990
Self-balancing drilling assembly and apparatus
AMOCO CORP73 citations96
US4862974ASep 5, 1989
Downhole drilling assembly, apparatus and method utilizing drilling motor and stabilizer
AMOCO CORP79 citations96
US4721172AJan 26, 1988
Apparatus for controlling the force applied to a drill bit while drilling
AMOCO CORP63 citations96
US5547031AAug 20, 1996
Orientation control mechanism
AMOCO CORP56 citations95
US4914591AApr 3, 1990
Method of determining rock compressive strength
AMOCO CORP83 citations95
US5802011ASep 1, 1998
Pressure signalling for fluidic media
AMOCO CORP34 citations93
US5601151AFeb 11, 1997
Drilling tool
AMOCO CORP29 citations93
US5337839AAug 16, 1994
Extending the lateral portion of a short-radius wellbore
AMOCO CORP26 citations93
US4871037AOct 3, 1989
Excavation apparatus, system and method
AMOCO CORP25 citations93
US4905775AMar 6, 1990
Drilling system and flow control apparatus for downhole drilling motors
AMOCO CORP38 citations92
US4705117ANov 10, 1987
Method and apparatus for reducing drill bit wear
AMOCO CORP35 citations92
US4660656AApr 28, 1987
Method and apparatus for controlling the rotational torque of a drill bit
AMOCO CORP45 citations92
US4948925AAug 14, 1990
Apparatus and method for rotationally orienting a fluid conducting conduit
AMOCO CORP46 citations90
US4887677ADec 19, 1989
Low pressure drill bit
AMOCO CORP30 citations90
US5210533AMay 11, 1993
Apparatus and method for positioning a tool in a deviated section of a borehole
AMOCO CORP34 citations89
US4899833AFeb 13, 1990
Downhole drilling assembly orienting device
AMOCO CORP14 citations74
US4881605ANov 21, 1989
Stabilizing and drilling apparatus and method
AMOCO CORP8 citations68
US4655303AApr 7, 1987
Drill bit
AMOCO CORP3 citations63
TESCO CORP
14 patentsUS7013992B2Mar 21, 2006
Borehole stabilization while drilling
TESCO CORP63 citations98
US7090004B2Aug 15, 2006
Cement float
TESCO CORP20 citations93
US7219727B2May 22, 2007
Wear resistant tubular connection
TESCO CORP29 citations92
US7814972B2Oct 19, 2010
Wireline entry sub
TESCO CORP8 citations84
US7520343B2Apr 21, 2009
Retrievable center bit
TESCO CORP13 citations84
US7845431B2Dec 7, 2010
Retrieval tool with slips for retrieving bottom hole assembly during casing while drilling operations
TESCO CORP12 citations83
US7647990B2Jan 19, 2010
Method for drilling with a wellbore liner
TESCO CORP16 citations82
US7472763B2Jan 6, 2009
Wear resistant tubular connection
TESCO CORP6 citations74
US7798251B2Sep 21, 2010
Circulation system for retrieval of bottom hole assembly during casing while drilling operations
TESCO CORP7 citations73
US7708077B2May 4, 2010
Retrieval of bottom hole assembly during casing while drilling operations
TESCO CORP7 citations73
US7775302B2Aug 17, 2010
Casing shoe and retrievable bit assembly
TESCO CORP5 citations63
US7637330B2Dec 29, 2009
Casing bottom hole assembly retrieval process
TESCO CORP5 citations63
US7575061B2Aug 18, 2009
Wireline entry sub and method of using
TESCO CORP5 citations63
US7886847B2Feb 15, 2011
Monitoring flow rates while retrieving bottom hole assembly during casing while drilling operations
TESCO CORP2 citations62
BP AMOCO CORP
1 patentBRETT J FORD
1 patentSINOR L ALLEN
1 patentTESCO CORP US
1 patentWARREN TOMMY M
1 patentShowing the top 50 of 55 patents by PatentIndex Score.