1
Daniel Juhasz, George Boyadjieff, Brian L Eidem, Hans Van Rijzingen: Pipe running tool. Varco I P, Christie Parker & Hale, September 3, 2002: US06443241 (134 worldwide citation)

A pipe running tool for use in an oil drilling system and the like comprises a lower drive shaft adapted to engage a drive shaft of a top drive assembly for rotation therewith. The pipe running tool further includes a lower pipe engagement assembly which is driven to rotate by the lower drive shaft, ...


2
Daniel Juhasz, George Boyadjieff, Brian L Eidem, Hans van Rijzingen: Offset elevator for a pipe running tool and a method of using a pipe running tool. Varco I P, Christie Parker & Hale, October 28, 2003: US06637526 (90 worldwide citation)

A pipe running tool for use in an oil drilling system and the like comprises a lower drive shaft adapted to engage a drive shaft of a top drive assembly for rotation therewith. The pipe running tool further includes a lower pipe engagement assembly which is driven to rotate by the lower drive shaft, ...


3
Daniel Juhasz, George Boyadjieff, Brian L Eidem, Hans Van Rijzingen: Load compensator for a pipe running tool. Varco I P, Christie Parker & Hale, February 17, 2004: US06691801 (80 worldwide citation)

A load compensator is disclosed for use in connection with a pipe running tool. The load compensator includes an outer housing connected to the portion of the pipe running tool that holds the pipe segment. A piston is disposed within the housing, and is connected to a top drive system of the pipe ru ...


4
Daniel Juhasz, George Boyadjieff, Brian L Eidem, Hans van Rijzingen, Herman Kamphorst, Dieter Boettger, Guus van Wechem: Pipe running tool. Varco I P, Christie Parker & Hale, August 29, 2006: US07096977 (51 worldwide citation)

A pipe running tool for use in an oil drilling system and the like comprises a lower drive shaft adapted to engage a drive shaft of a top drive assembly for rotation therewith. The pipe running tool further includes a lower pipe engagement assembly which is driven to rotate by the lower drive shaft, ...


5
Daniel Juhasz, George Boyadjieff, Brian L Eidem, Hans van Rijzingen, Herman Kamphorst, Dieter Boettger, Guus van Wechem: Pipe running tool. Varco International, Christie Parker & Hale, September 6, 2005: US06938709 (23 worldwide citation)

A pipe running tool for use in an oil drilling system and the like comprises a lower drive shaft adapted to engage a drive shaft of a top drive assembly for rotation therewith. The pipe running tool further includes a lower pipe engagement assembly which is driven to rotate by the lower drive shaft, ...


6
Daniel Juhasz, George Boyadjieff, Brian L Eidem, Hans van Rijzingen, Herman M Kamphorst, Hans Joachim Dieter Böttger, Gustaaf Louis van Wechem, David Mason: Pipe running tool having wireless telemetry. Varco I P, Christie Parker & Hale, September 22, 2009: US07591304 (17 worldwide citation)

A system for measuring desired drilling parameters of a pipe string during an oil and gas well drilling operation is provided that includes a top drive assembly; a pipe running tool engageable with the pipe string and coupled to the top drive assembly to transmit translational and rotational forces ...


7
Daniel Juhasz, George Boyadjieff, Brian L Eidem, Pamela Eidem legal representative, Hans van Rijzingen, Herman M Kamphorst, Hans Joachim Dietrich Böttger, Gustaaf Louis van Wechem, David Mason, Anton Krijnen: Pipe running tool having a primary load path. Varco I P, Christie Parker & Hale, April 20, 2010: US07699121 (8 worldwide citation)

A system for coupling a pipe segment to a pipe string is provided that includes a top drive assembly having a threaded output shaft; and a pipe running tool threadingly coupled to the threaded output shaft of the top drive assembly such that the primary load of the pipe running tool is supported by ...


8
Daniel Juhasz, George Boyadjieff, Brian L Eidem, Hans van Rijzingen, Herman M Kamphorst, Hans Joachim Dietrich Böttger, Gustaaf Louis van Wechem, David Mason, Ronaldus R M Roling: Pipe running tool having a cement path. Varco I P, Christie Parker & Hale, March 31, 2009: US07510006 (5 worldwide citation)

An oil and gas well drilling system is provided that includes a top drive assembly having an output shaft; and a pipe running tool having a top drive extension shaft connected to the top drive output shaft and engageable with a pipe string to transmit translational and rotational forces from the top ...


9
Daniel Juhasz, George Boyadjieff, Brian L Eidem, Hans Van Rijzingen: Pipe running tool. Christie Parker & Hale, June 20, 2002: US20020074132-A1 (4 worldwide citation)

A pipe running tool for use in an oil drilling system and the like comprises a lower drive shaft adapted to engage a drive shaft of a top drive assembly for rotation therewith. The pipe running tool further includes a lower pipe engagement assembly which is driven to rotate by the lower drive shaft, ...


10
Daniel Juhasz, George Boyadjieff, Brian L Eidem, Pamela Eidem legal representative, Hans van Rijzingen, Herman M Kamphorst, Hans Joachim Dietrich Böttger, Gustaaf Louis van Wechem, David Mason, Anton Krijnen: Pipe running tool having internal gripper. Varco I P, Christie Parker & Hale, July 13, 2010: US07753138 (3 worldwide citation)

A system for coupling a pipe segment to a pipe string is provided that includes a top drive assembly having an output shaft; and a pipe running tool coupled to the top drive assembly and rotatable by the output shaft of the top drive assembly. The pipe running tool includes an internal gripper for i ...