1
Randy Gene Snider, David Shahin, Jim Allen, Kevin Gray, Gary Thompson: Top drive casing system. Weatherford Lamb, Moser Patterson & Sheridan L, March 25, 2003: US06536520 (178 worldwide citation)

A torque head for gripping tubular members, in at least some aspects, has a housing, grip mechanism secured within the housing, the grip mechanism for selectively gripping a tubular member, the grip mechanism including at least one jaw selectively movable toward and away from a portion of a tubular ...


2
Richard L Giroux, David Shahin, Adrian Vuyk Jr, Gary Thompson, Kevin Leon Gray, John Timothy Allen, Randy Gene Snider: Methods and apparatus for handling and drilling with tubulars or casing. Weatherford Lamb, Patterson & Sheridan, February 5, 2008: US07325610 (73 worldwide citation)

The present invention provides a method and apparatus for handling tubulars and drilling with tubulars such as casing into a formation. In one aspect of the invention, the apparatus comprises a circulating head and a cementing head operatively connectible to a gripping member. The circulating head i ...


3
Richard L Giroux, David Shahin, Adrian Vuyk Jr, Gary Thompson, Kevin Leon Gray, John Timothy Allen, Randy Gene Snider: Methods and apparatus for handling and drilling with tubulars or casing. Weatherford Lamb, Patterson & Sheridan, February 2, 2010: US07654325 (36 worldwide citation)

The present invention provides a method and apparatus for handling tubulars and drilling with tubulars such as casing into a formation. In one aspect of the invention, the apparatus comprises a circulating head and a cementing head operatively connectible to a gripping member. The circulating head i ...


4
Randy Gene Snider, David Shahin, Jim Allen, Kevin Gray, Gary Thompson: Top drive casing system. Weatherford Lamb, Patterson & Sheridan, May 11, 2010: US07712523 (35 worldwide citation)

A torque head for gripping tubular members, in at least some aspects, has a housing, grip mechanism secured within the housing, the grip mechanism for selectively gripping a tubular member, the grip mechanism including at least one jaw selectively movable toward and away from a portion of a tubular ...


5
Randy Gene Snider, David Othman Shahin, John Timothy Allen, Kevin Leon Gray, Gary Thompson: Top drive casing system. Weatherford Lamb, Patterson & Sheridan, September 14, 2010: US07793719 (31 worldwide citation)

A torque head for gripping tubular members, in at least some aspects, has a housing, grip mechanism secured within the housing, the grip mechanism for selectively gripping a tubular member, the grip mechanism including at least one jaw selectively movable toward and away from a portion of a tubular ...


6
Randy Gene Snider, David Othman Shahin, John Timothy Allen, Kevin Leon Gray, Gary Thompson: Top drive casing system. Weatherford Lamb, Patterson & Sheridan, April 5, 2011: US07918273 (8 worldwide citation)

A torque head for gripping tubular members, in at least some aspects, has a housing, grip mechanism secured within the housing, the grip mechanism for selectively gripping a tubular member, the grip mechanism including at least one jaw selectively movable toward and away from a portion of a tubular ...


7
Randy Gene Snider, David Othman Shahin, John Timothy Allen, Kevin Leon Gray, Gary Thompson: Top drive casing system. Weatherford Lamb, Patterson & Sheridan, July 31, 2012: US08230933 (1 worldwide citation)

A torque head for gripping tubular members, in at least some aspects, has a housing, grip mechanism secured within the housing, the grip mechanism for selectively gripping a tubular member, the grip mechanism including at least one jaw selectively movable toward and away from a portion of a tubular ...


8
Richard L Giroux, David Shahin, Adrian Vuyk, Gary Thompson, Kevin Leon Gray, John Timothy Allen, Randy Gene Snider: Methods and apparatus for handling and drilling with tubulars or casing. Weatherford Lamb, William B Patterson, Moser Patterson & Sheridan, January 6, 2005: US20050000691-A1

The present invention provides a method and apparatus for handling tubulars and drilling with tubulars such as casing into a formation. In one aspect of the invention, the apparatus comprises a circulating head and a cementing head operatively connectible to a gripping member. The circulating head i ...


9
Randy Gene Snider, David Othman Shahin, John Timothy Allen, Kevin Leon Gray, Gary Thompson: Top drive casing system. Weatherford Lamb, William B Patterson, Moser Patterson & Sheridan, September 18, 2003: US20030173073-A1

A torque head for gripping tubular members, in at least some aspects, has a housing, grip mechanism secured within the housing, the grip mechanism for selectively gripping a tubular member, the grip mechanism including at least one jaw selectively movable toward and away from a portion of a tubular ...


10
Randy Gene Snider, David Othman Shahin, John Timothy Allen, Kevin Leon Gray, Gary Thompson: Top drive casing system. Weatherford Lamb, William B Patterson, Moser Patterson & Sheridan, September 4, 2003: US20030164276-A1

A torque head for gripping tubular members, in at least some aspects, has a housing, grip mechanism secured within the housing, the grip mechanism for selectively gripping a tubular member, the grip mechanism including at least one jaw selectively movable toward and away from a portion of a tubular ...