1
Mark W Dykstra, William Heuser, Michael L Doster, Theodore E Zaleski Jr, Jack T Oldham, Terry D Watts, Daniel E Ruff, Rodney B Walzel, Christopher C Beuershausen: Drill bits with reduced exposure of cutters. Baker Hughes Incorporated, TraskBritt, October 8, 2002: US06460631 (82 worldwide citation)

A rotary drag bit and method for drilling subterranean formations including a bit body being provided with at least one cutter thereon exhibiting reduced, or limited, exposure to the formation so as to control the depth-of-cut of the at least one cutter, so as to control the volume of formation mate ...


2
Mark W Dykstra, William Heuser, Michael L Doster, Theodore E Zaleski Jr, Jack T Oldham, Terry D Watts, Daniel E Ruff, Rodney B Walzel, Christopher C Beuershausen: Drill bits with reduced exposure of cutters. Baker Hughes Incorporated, TraskBritt, August 29, 2006: US07096978 (63 worldwide citation)

A rotary drag bit and method for drilling subterranean formations, including a bit body being provided with at least one cutter thereon exhibiting reduced, or limited, exposure to the formation, so as to control the depth-of-cut of the at least one cutter, so as to control the volume of formation ma ...


3
Mark W Dykstra, William Heuser, Michael L Doster, Theodore E Zaleski Jr, Jack T Oldham, Terry D Watts, Daniel E Ruff, Rodney B Walzel, Christopher C Beuershausen: Drill bits with controlled exposure of cutters. Baker Hughes Incorporated, TraskBritt, August 24, 2004: US06779613 (62 worldwide citation)

A rotary drag bit and method for drilling subterranean formations including a bit body being provided with at least one cutter thereon exhibiting reduced, or limited, exposure to the formation so as to control the depth-of-cut of the at least one cutter, so as to control the volume of formation mate ...


4
Eric Charles Sullivan, Theodore Edward Zaleski Jr, Scott Ray Schmidt, Don Quy Nguyen, Glenn R Zadrapa, Timothy K Marvel, Daniel E Ruff: Method and apparatus for monitoring and recording of the operating condition of a downhole drill bit during drilling operations. Baker Hughes Incorporated, Melvin A Hunn, James E Walton, June 3, 2003: US06571886 (54 worldwide citation)

An improved drill bit includes a bit body, a coupling member formed at an upper shank portion. It further includes at least one sensor for monitoring at least one condition of the bit during drilling operations. In one embodiment the at least one sensor is a capacitor disposed in a lubrication pathw ...


5
Eric Charles Sullivan, Theodore Edward Zaleski Jr, Scott Ray Schmidt, Don Quy Nguyen, Glenn R Zadrapa, Timothy K Marvel, Daniel E Ruff: Method and apparatus for monitoring and recording of the operating condition of a downhole drill bit during drilling operations. Baker Hughes Incorporated, Hill Law Firm, June 27, 2006: US07066280 (33 worldwide citation)

An improved drill bit for use in drilling operations in a wellbore comprising a bit body including a plurality of bit legs, each supporting a rolling cone cutter, a lubrication system for a rolling cone cutter, at least one lubrication sensor for monitoring at least one condition of said lubricant d ...


6
Mark W Dykstra, William Heuser, Michael L Doster, Theodore E Zaleski Jr, Jack T Oldham, Terry D Watts, Daniel E Ruff, Rodney B Walzel, Christopher C Beuershausen: Drill bits with reduced exposure of cutters. Baker Hughes Incorporated, TraskBritt, August 30, 2005: US06935441 (27 worldwide citation)

A rotary drag bit and method for drilling subterranean formations, including a bit body being provided with at least one cutter thereon exhibiting reduced, or limited, exposure to the formation, so as to control the depth-of-cut of the at least one cutter, so as to control the volume of formation ma ...


7
Mark W Dykstra, William Heuser, Michael L Doster, Theodore E Zaleski Jr, Jack T Oldham, Terry D Watts, Daniel E Ruff, Rodney B Walzel, Christopher C Beuershausen: Drilling apparatus with reduced exposure of cutters and methods of drilling. Baker Hughes Incorporated, TraskBritt, October 19, 2010: US07814990 (11 worldwide citation)

A rotary drilling apparatus and method for drilling subterranean formations, including a body being provided with at least one cutter thereon exhibiting reduced, or limited, exposure to the formation, so as to control the depth-of-cut of the at least one cutter, so as to control the volume of format ...


8
Anton F Zahradnik, Eric C Sullivan, R Scot Smith, Daniel E Ruff, Danielle V Roberts, Alan J Massey: Rotary drill bit shank, rotary drill bits so equipped, and methods of manufacture. Baker Hughes Incorporated, TraskBritt, January 6, 2009: US07472764 (8 worldwide citation)

A shank configuration for rotary drill bits is disclosed for positioning of the shank in relation to the bit body. A tapered surface or feature of the shank may be configured and sized to matingly engage a complementarily shaped surface or feature of the drill bit body and thereby become centered or ...


9
Mark W Dykstra, William Heuser, Michael L Doster, Theodore E Zaleski Jr, Jack T Oldham, Terry D Watts, Daniel E Ruff, Rodney B Walzel, Christopher C Beuershausen: Drilling apparatus with reduced exposure of cutters and methods of drilling. Baker Hughes Incorporated, TraskBritt, May 8, 2012: US08172008 (5 worldwide citation)

A rotary drilling apparatus and method for drilling subterranean formations, including a body being provided with at least one cutter thereon exhibiting reduced, or limited, exposure to the formation, so as to control the depth-of-cut of the at least one cutter, so as to control the volume of format ...


10
Mark W Dykstra, William Heuser, Michael L Doster, Theodore E Zaleski Jr, Jack T Oldham, Terry D Watts, Daniel E Ruff, Rodney B Walzel, Christopher C Beuershausen: Drilling apparatus with reduced exposure of cutters and methods of drilling. Baker Hughes Incorporated, TraskBritt, November 29, 2011: US08066084 (4 worldwide citation)

A rotary drilling apparatus and method for drilling subterranean formations, including a body being provided with at least one cutter thereon exhibiting reduced, or limited, exposure to the formation, so as to control the depth-of-cut of the at least one cutter, so as to control the volume of format ...