| Patents for E21B 19 - Handling rods, casings, tubes or the like outside the borehole, e.g. in the derrick; Apparatus for feeding the rods or cables (17,198) |
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| 03/28/1978 | US4081087 Pipe laydown and pickup machine |
| 03/28/1978 | US4081084 Casing handling system |
| 03/21/1978 | US4079640 Pipe make up device |
| 03/07/1978 | USRE29565 Drill string heave compensator and latching apparatus |
| 03/07/1978 | USRE29564 Hydraulic motion compensating apparatus |
| 03/07/1978 | US4077525 Derrick mounted apparatus for the manipulation of pipe |
| 03/07/1978 | US4077480 One man operated, twin wheel mounted powered earth drill |
| 02/28/1978 | US4076338 Castering roller for a drill pipe guide bushing |
| 02/28/1978 | US4076337 Drill steel holder |
| 02/21/1978 | USRE29541 Hydraulic drilling rig and power swivel |
| 02/21/1978 | US4074774 Drilling assembly |
| 02/21/1978 | US4074771 Rock drill |
| 02/07/1978 | US4072369 Drill pipe stabbing protector |
| 01/31/1978 | US4071203 Laying of flexible pipe |
| 01/31/1978 | US4071145 Pivotal and releasable rat hole assembly |
| 01/31/1978 | US4071100 Method of making holes of selected external configuration in preferably rock or ground formation, and a drilling machine for carrying out the method |
| 01/24/1978 | US4069879 Pipe handler |
| 01/24/1978 | US4069877 Mechanism for tensioning fluid hoses on a rock drill feed |
| 01/10/1978 | US4067453 Pipe delivery system |
| 01/10/1978 | US4067450 Pipe handling apparatus for pipe laying barges |
| 01/10/1978 | US4067398 Ring drilling rig |
| 01/10/1978 | US4067397 Hand-operated device for drilling blast-holes |
| 01/03/1978 | US4066135 Telescopic rock drill mounting |
| 01/03/1978 | US4066134 Hydraulic post hole auger apparatus |
| 01/03/1978 | US4065845 Device for changing bore crowns |
| 12/20/1977 | US4063650 Equipment handling system |
| 12/13/1977 | US4062456 Adjustable rollers for positioning pipe |
| 12/13/1977 | US4062412 Flexible shaft drilling system |
| 12/06/1977 | US4061967 Support system for rotatable detecting element |
| 12/06/1977 | US4061233 Drilling rigs |
| 12/06/1977 | US4061231 Pipe handling apparatus for pipe laying barges |
| 11/29/1977 | US4060014 Power tong |
| 11/22/1977 | US4059162 Drilling unit for stadium seats |
| 11/15/1977 | US4058339 Pivotal latch for a sucker rod puller |
| 11/15/1977 | US4057887 Pipe disconnecting apparatus |
| 11/01/1977 | US4056151 Excavating tool |
| 10/18/1977 | US4054332 Actuation means for roller guide bushing for drill rig |
| 10/18/1977 | US4054210 Apparatus for transporting and handling pipe |
| 10/18/1977 | US4054104 Submarine well drilling and geological exploration station |
| 10/11/1977 | US4053063 Apparatus for handling pipe at well site |
| 10/11/1977 | US4053022 Device for guiding a drilling string during underwater drilling |
| 10/04/1977 | US4052047 Clamp |
| 10/04/1977 | US4051956 Horizontal pipe handling apparatus |
| 09/27/1977 | US4050858 Well pumping apparatus |
| 09/27/1977 | US4050590 Drilling rigs |
| 09/20/1977 | US4049239 Drill spring tension limiting device for floating drilling vessels |
| 09/20/1977 | US4049065 Drilling apparatus |
| 09/20/1977 | US4049064 Multi function drill drive system |
| 09/13/1977 | US4047582 Portable earth boring machine |
| 09/06/1977 | US4046355 Drawworks control apparatus |
| 08/30/1977 | US4045591 Protecting against corrosion by cleaning, cold working, and coating with a stainless steel |
| 08/30/1977 | US4044895 Pipe racking system |
| 08/16/1977 | US4042123 Automated pipe handling system |
| 08/16/1977 | US4042043 Portable earth boring machine |
| 08/16/1977 | US4041773 Ultrasonic inspection apparatus for well operations |
| 08/09/1977 | US4040524 Apparatus for handling pipe at well site |
| 08/02/1977 | US4039177 Heave compensation apparatus for a marine mining vessel |
| 08/02/1977 | US4039176 Marine riser spider shock absorber apparatus |
| 08/02/1977 | US4039032 Hose training means |
| 07/26/1977 | US4037672 Shaft drill break-out system |
| 07/26/1977 | US4037662 Automated bailing apparatus in flexible combination for bailing shallow wells |
| 07/19/1977 | US4035969 Telescopic columns of machines for making foundations, and the telescopic columns thereby derived |
| 07/12/1977 | US4035012 Dual elevators |
| 07/05/1977 | US4033465 Pipe handling system for vessels |
| 07/05/1977 | US4033129 Hydraulic feed control system for rotary drill |
| 06/28/1977 | US4032183 Pipe elevator |
| 06/21/1977 | US4030746 Pipe handling head |
| 06/21/1977 | US4030542 Drill string make-up and break-out mechanism |
| 06/14/1977 | US4029215 Pipe handling apparatus for pipe laying barges |
| 06/14/1977 | US4029160 Drilling machine |
| 06/07/1977 | US4027854 Self-equalizing linkage for well derricks |
| 05/31/1977 | US4027210 Method and control system to limit shifting movement of a winning tool for a tunneling machine |
| 05/24/1977 | US4024925 Equipment handling apparatus |
| 05/24/1977 | US4024923 Rock bolting equipment |
| 05/17/1977 | US4023626 Self-adaptive hydraulic rock drill |
| 05/17/1977 | US4023449 Tool for connecting and disconnecting well pipe |
| 05/10/1977 | US4022430 Sucker rod adjustment tool |
| 05/10/1977 | US4022410 Universal coupling |
| 05/03/1977 | US4021126 Latch mechanism for auger string couplings |
| 05/03/1977 | US4020909 Portable earth drilling apparatus |
| 05/03/1977 | US4020688 Ultrasonic inspection apparatus for vertical members |
| 04/19/1977 | US4018471 Rotating head |
| 04/19/1977 | US4018273 Mandrel locking sleeve |
| 04/05/1977 | US4015821 Cable tensioning assembly |
| 04/05/1977 | US4015672 Digger attachment |
| 04/05/1977 | US4015661 Apparatus for coupling and uncoupling pipe sections |
| 03/22/1977 | US4013205 Gripping shoe equipping a device for pulling an elongate member |
| 03/22/1977 | US4013178 Pipe racker |
| 03/08/1977 | US4010819 Arrangement for muffling the exhaust of a pneumatic rock drilling machine |
| 03/08/1977 | US4010806 Rock bolting equipment |
| 03/01/1977 | US4009754 Electrical cable feeding and removing apparatus |
| 02/15/1977 | US4007782 Parking device for blowout preventer |
| 02/01/1977 | US4005621 Drilling tong |
| 01/25/1977 | US4004532 Riser tension system for floating platform |
| 01/18/1977 | US4003435 Method and apparatus for deployment and retrieval of fixed lengths of electrical cable into and from a well bore |
| 01/11/1977 | US4002248 Multi-stage pipe feeder |
| 01/04/1977 | US4001774 Method of transmitting signals from a drill bit to the surface |
| 01/04/1977 | US4000879 Pushing or pulling apparatus for pipe, rod or the like |
| 01/04/1977 | US4000873 Mounting for rock drills |
| 12/28/1976 | US3999616 Method and apparatus for establishing the drilling line of an overhead boring machine |