Inventor
TIBBITTS GORDON A
US68 patents
⚠️ This page may combine multiple inventors who share the name “TIBBITTS GORDON A”. Patents are grouped by organization below to help distinguish them — per-person disambiguation is on the roadmap.
BAKER HUGHES INC
44 patentsUS6594881B2Jul 22, 2003
Bit torque limiting device
BAKER HUGHES INC123 citations99
US6298930B1Oct 9, 2001
Drill bits with controlled cutter loading and depth of cut
BAKER HUGHES INC200 citations99
US6202770B1Mar 20, 2001
Superabrasive cutting element with enhanced durability and increased wear life and apparatus so equipped
BAKER HUGHES INC193 citations99
US6006846ADec 28, 1999
Cutting element, drill bit, system and method for drilling soft plastic formations
BAKER HUGHES INC172 citations99
US6000483ADec 14, 1999
Superabrasive cutting element with enhanced durability and increased wear life, and apparatus so equipped
BAKER HUGHES INC148 citations99
US5906245AMay 25, 1999
Mechanically locked drill bit components
BAKER HUGHES INC205 citations99
US5706906AJan 13, 1998
Superabrasive cutting element with enhanced durability and increased wear life, and apparatus so equipped
BAKER HUGHES INC231 citations99
US5678645AOct 21, 1997
Mechanically locked cutters and nozzles
BAKER HUGHES INC161 citations99
US5651420AJul 29, 1997
Drilling apparatus with dynamic cuttings removal and cleaning
BAKER HUGHES INC129 citations99
US5590729AJan 7, 1997
Superhard cutting structures for earth boring with enhanced stiffness and heat transfer capabilities
BAKER HUGHES INC153 citations99
US5560440AOct 1, 1996
Bit for subterranean drilling fabricated from separately-formed major components
BAKER HUGHES INC513 citations99
US5435403AJul 25, 1995
Cutting elements with enhanced stiffness and arrangements thereof on earth boring drill bits
BAKER HUGHES INC203 citations99
US5361859ANov 8, 1994
Expandable gage bit for drilling and method of drilling
BAKER HUGHES INC352 citations99
US5337844AAug 16, 1994
Drill bit having diamond film cutting elements
BAKER HUGHES INC168 citations99
US5314033AMay 24, 1994
Drill bit having combined positive and negative or neutral rake cutters
BAKER HUGHES INC128 citations99
US4976324ADec 11, 1990
Drill bit having diamond film cutting surface
BAKER HUGHES INC218 citations99
US6742611B1Jun 1, 2004
Laminated and composite impregnated cutting structures for drill bits
BAKER HUGHES INC217 citations98
US6458471B2Oct 1, 2002
Reinforced abrasive-impregnated cutting elements, drill bits including same and methods
BAKER HUGHES INC192 citations98
US6450271B1Sep 17, 2002
Surface modifications for rotary drill bits
BAKER HUGHES INC146 citations98
US6338390B1Jan 15, 2002
Method and apparatus for drilling a subterranean formation employing drill bit oscillation
BAKER HUGHES INC109 citations98
US6241036B1Jun 5, 2001
Reinforced abrasive-impregnated cutting elements, drill bits including same
BAKER HUGHES INC190 citations98
US6123160ASep 26, 2000
Drill bit with gage definition region
BAKER HUGHES INC104 citations98
US6021859AFeb 8, 2000
Stress related placement of engineered superabrasive cutting elements on rotary drag bits
BAKER HUGHES INC274 citations98
US5950747ASep 14, 1999
Stress related placement on engineered superabrasive cutting elements on rotary drag bits
BAKER HUGHES INC130 citations98
US5787022AJul 28, 1998
Stress related placement of engineered superabrasive cutting elements on rotary drag bits
BAKER HUGHES INC164 citations98
US5605198AFeb 25, 1997
Stress related placement of engineered superabrasive cutting elements on rotary drag bits
BAKER HUGHES INC206 citations98
US5533582AJul 9, 1996
Drill bit cutting element
BAKER HUGHES INC125 citations98
US6527065B1Mar 4, 2003
Superabrasive cutting elements for rotary drag bits configured for scooping a formation
BAKER HUGHES INC61 citations96
US6325163B2Dec 4, 2001
Bit torque limiting device
BAKER HUGHES INC32 citations96
US6206117B1Mar 27, 2001
Drilling structure with non-axial gage
BAKER HUGHES INC60 citations96
US5947214ASep 7, 1999
BIT torque limiting device
BAKER HUGHES INC64 citations96
US5924501AJul 20, 1999
Predominantly diamond cutting structures for earth boring
BAKER HUGHES INC80 citations96
US5671816ASep 30, 1997
Swivel/tilting bit crown for earth-boring drills
BAKER HUGHES INC62 citations96
US5582258ADec 10, 1996
Earth boring drill bit with chip breaker
BAKER HUGHES INC81 citations96
US5460233AOct 24, 1995
Diamond cutting structure for drilling hard subterranean formations
BAKER HUGHES INC380 citations96
US5441121AAug 15, 1995
Earth boring drill bit with shell supporting an external drilling surface
BAKER HUGHES INC71 citations96
US5377773AJan 3, 1995
Drill bit having combined positive and negative or neutral rake cutters
BAKER HUGHES INC88 citations96
US5348108ASep 20, 1994
Rolling cone bit with improved wear resistant inserts
BAKER HUGHES INC90 citations96
US5316095AMay 31, 1994
Drill bit cutting element with cooling channels
BAKER HUGHES INC62 citations96
US5199511AApr 6, 1993
Drill bit and method for reducing formation fluid invasion and for improved drilling in plastic formations
BAKER HUGHES INC85 citations96
US4981183AJan 1, 1991
Apparatus for taking core samples
BAKER HUGHES INC53 citations96
US5279375AJan 18, 1994
Multidirectional drill bit cutter
BAKER HUGHES INC99 citations95
US5172778ADec 22, 1992
Drill bit cutter and method for reducing pressure loading of cutters
BAKER HUGHES INC138 citations95
US5238074AAug 24, 1993
Mosaic diamond drag bit cutter having a nonuniform wear pattern
BAKER HUGHES INC274 citations94
EASTMAN CHRISTENSEN CO
4 patentsUS5090491AFeb 25, 1992
Earth boring drill bit with matrix displacing material
EASTMAN CHRISTENSEN CO190 citations98
US5004057AApr 2, 1991
Drill bit with improved steerability
EASTMAN CHRISTENSEN CO60 citations96
US4883132ANov 28, 1989
Drag bit for drilling in plastic formation with maximum chip clearance and hydraulic for direct chip impingement
EASTMAN CHRISTENSEN CO74 citations96
US4877096AOct 31, 1989
Replaceable cutter using internal ductile metal receptacles
EASTMAN CHRISTENSEN CO76 citations96
(unassigned)
2 patentsShowing the top 50 of 68 patents by PatentIndex Score.