Search Images Maps Play YouTube News Gmail Drive More »
Advanced Patent Search | Web History | Sign in

Patents

Referenced by

Citing PatentFiling dateIssue dateOriginal AssigneeTitle
US44897942 May 198325 Dec 1984Varco International, Inc.Link tilting mechanism for well rigs
US46050774 Dec 198412 Aug 1986Varco International, Inc.Top drive drilling systems
US46257961 Apr 19852 Dec 1986Varco International, Inc.Well pipe stabbing and back-up apparatus
US475330026 Feb 198728 Jun 1988Triten CorporationHydraulic top drive for wells
US478135923 Sep 19871 Nov 1988National-OilwellSub assembly for a swivel
US479342216 Mar 198827 Dec 1988Hughes Tool Company - USAArticulated elevator links for top drive drill rig
US480096822 Sep 198731 Jan 1989Triten CorporationWell apparatus with tubular elevator tilt and indexing apparatus and methods of their use
US483255218 Aug 198623 May 1989Method and apparatus for rotary power driven swivel drilling
US483460419 Oct 198730 May 1989Lee C. Moore CorporationPipe moving apparatus and method
US487854612 Feb 19887 Nov 1989Triten CorporationSelf-aligning top drive
US53541508 Feb 199311 Oct 1994Technique for making up threaded pipe joints into a pipeline
US538186724 Mar 199417 Jan 1995Bowen Tools, Inc.Top drive torque track and method of installing same
US550128630 Sep 199426 Mar 1996Bowen Tools, Inc.Method and apparatus for displacing a top drive torque track
US550556527 Jun 19949 Apr 1996Apparatus for making up threaded pipe joints into a pipeline
US653654117 Apr 200125 Mar 2003Soilmec S.p.A.Boring unit for pile foundations
US697397923 Oct 200313 Dec 2005Savanna Energy Services Corp.Drilling rig apparatus and downhole tool assembly system and method
US751331215 Feb 20077 Apr 2009Savanna Energy Services Corp.Drilling rig apparatus and downhole tool assembly system and method
US772692914 Jan 20081 Jun 2010T&T Engineering ServicesPipe handling boom pretensioning apparatus
US77438348 Sep 200829 Jun 2010Frank's Casing Crew and Rental Tools, Inc.Running wellbore tubulars
US791863624 Oct 20075 Apr 2011T&T Engineering ServicesPipe handling apparatus and method
US794679527 Oct 200824 May 2011T & T Engineering Services, Inc.Telescoping jack for a gripper assembly
US798080227 Oct 200819 Jul 2011T&T Engineering ServicesPipe handling apparatus with arm stiffening
US812833227 Oct 20086 Mar 2012T & T Engineering Services, Inc.Header structure for a pipe handling apparatus
US81724973 Apr 20098 May 2012T & T Engineering ServicesRaise-assist and smart energy system for a pipe handling apparatus
US819212820 May 20095 Jun 2012T&T Engineering Services, Inc.Alignment apparatus and method for a boom of a pipe handling system
US819212927 May 20105 Jun 2012T&T Engineering Services, Inc.Pipe handling boom pretensioning apparatus
US82351049 Dec 20097 Aug 2012T&T Engineering Services, Inc.Apparatus for pipe tong and spinner deployment