P

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 patents
US6594881B2Jul 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 patents

(unassigned)

2 patents

Showing the top 50 of 68 patents by PatentIndex Score.