| 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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| 01/02/1997 | EP0551299B1 Method of drilling holes in rock |
| 12/27/1996 | CA2177340A1 Apparatus for limiting eccentric deviations of a polished rod in pumping applications |
| 12/25/1996 | CN1138660A Blasthole drill with improved automatic breakout wrench |
| 12/24/1996 | US5586743 Auger stand |
| 12/24/1996 | CA2179357A1 Combination power and backup tong support and method |
| 12/18/1996 | EP0521157B1 Propelling system in small diameter pipe propeller |
| 12/18/1996 | CN2242974Y Permanent clipper of feather-cord of oil-pumping machine |
| 12/17/1996 | US5584351 Drilling machine and method of horizontal boring |
| 12/12/1996 | WO1996026812A3 Toggled breakout wrench |
| 12/11/1996 | EP0747567A2 Drill pipe with concave wrench receiving recesses |
| 12/11/1996 | EP0746668A1 Arrangement and method for controlling boom actuating cylinders in rock drilling equipment |
| 12/08/1996 | CA2176538A1 Drill pipe having concave wrenching recesses |
| 11/26/1996 | US5577787 Safety hook and method |
| 11/21/1996 | WO1996026349A3 Apparatus and method for handling drill pipes |
| 11/19/1996 | US5575344 For use with a drilling rig |
| 11/19/1996 | US5575332 Reeled well tubing systems |
| 11/13/1996 | EP0742344A2 Blowout preventer for coiled tubing |
| 11/12/1996 | US5572783 Method for utilizing a rod coupling tool for coupling and disassembling rods in a sucker rod string |
| 11/06/1996 | CN2239499Y Multifunctional pipe puller |
| 11/05/1996 | US5572318 Lead pipe configuration for underground pipe laying |
| 10/30/1996 | EP0740049A2 Coiled tubing actuated sampler |
| 10/30/1996 | EP0558567B1 A method for aligning a feeding beam in a rock drilling equipment and a rock drilling equipment and a measuring device |
| 10/29/1996 | US5570437 Apparatus for the remote measurement of physical parameters |
| 10/29/1996 | US5568837 Method of inserting tubing into live wells |
| 10/24/1996 | WO1996033337A1 A hydraulic arrangement for turning the actuator of a rock drilling machine |
| 10/24/1996 | DE19514288A1 Transportable borehole drilling device |
| 10/23/1996 | EP0738367A1 Feed-extension cylinder arrangement in a feed beam for a rock drill |
| 10/22/1996 | US5567138 Method and apparatus for limiting eccentric deviations of a rotating polished rod in rotary pumping applications |
| 10/22/1996 | US5566769 Tubular rotation tool for snubbing operations |
| 10/22/1996 | US5566764 Improved coil tubing injector unit |
| 10/17/1996 | WO1996032565A1 Method and apparatus for drilling multiple offshore wells from within a single conductor string |
| 10/09/1996 | EP0736664A2 Rotary device unit for an earth drilling rig |
| 10/03/1996 | WO1996030624A1 Top entry apparatus and method for a drilling assembly |
| 10/02/1996 | DE19512070A1 Mobile drilling rig with interconnecting drive heads |
| 10/01/1996 | US5561516 Casingless down-hole for sealing an ablation volume and obtaining a sample for analysis |
| 10/01/1996 | US5560435 Method and apparatus for drilling multiple offshore wells from within a single conductor string |
| 09/26/1996 | WO1996029503A1 An arrangement in a feed beam of a rock drill |
| 09/24/1996 | US5558169 Truck mounted work implement |
| 09/19/1996 | WO1996028634A1 Dual bore riser |
| 09/19/1996 | WO1996028633A2 Universal pipe injection apparatus for wells and method |
| 09/18/1996 | CN1131465A Improved slick line system with real-time surface display |
| 09/17/1996 | US5556253 Automatic pipe-loading device |
| 09/17/1996 | US5555947 Mole launcher and a method of operating a mole launcher |
| 09/12/1996 | WO1996022547A3 A method for determining the position of a tool of a rock drill |
| 09/11/1996 | EP0731251A2 A stowing and handling system for rods used in drilling rigs |
| 09/10/1996 | US5553979 Pull cap for attachment to a probe rod |
| 09/10/1996 | US5553680 For use in a predrilled vertical well bore casing |
| 09/10/1996 | US5553668 Twin carriage tubing injector apparatus |
| 09/06/1996 | WO1996027071A1 Arrangement in a feed equipment of a feed beam of a rock drill |
| 09/06/1996 | WO1996026812A2 Toggled breakout wrench |
| 09/06/1996 | CA2188535A1 Toggled breakout wrench |
| 09/04/1996 | EP0656986B1 Insert for use in slips |
| 09/03/1996 | US5551803 Riser tensioning mechanism for floating platforms |
| 09/03/1996 | CA2058789C Method of installing well conductors |
| 08/29/1996 | WO1996026351A1 Downhole tool |
| 08/29/1996 | WO1996026349A2 Apparatus and method for handling drill pipes |
| 08/29/1996 | CA2213456A1 Pipe handling device |
| 08/28/1996 | EP0580678B1 A method and an equipment for adjusting rock drilling |
| 08/21/1996 | EP0727007A1 Pressurized sheave mechanism for high pressure wireline service |
| 08/20/1996 | US5547314 Offshore system and method for storing and tripping a continuous length of jointed tubular conduit |
| 08/20/1996 | US5546833 Screw drive tool joint wrench |
| 08/15/1996 | WO1996024753A1 Continuous control system for a mining or tunnelling machine |
| 08/14/1996 | EP0725865A1 Drilling apparatus |
| 08/14/1996 | EP0560867B1 Method for manufacturing a tubular foundation in the ground |
| 08/13/1996 | US5544712 Drill pipe breakout device |
| 08/07/1996 | EP0724682A1 Tool for maintaining wellbore penetration |
| 08/06/1996 | US5542318 Bi-directional gripping apparatus |
| 08/01/1996 | DE19502355C1 Ground=mounted support to grip vertically projecting component |
| 07/25/1996 | WO1996022547A2 A method for determining the position of a tool of a rock drill |
| 07/24/1996 | EP0722531A1 Pipe racker assembly |
| 07/23/1996 | US5538092 Flexible drill pipe |
| 07/23/1996 | US5537900 For use with a drilling string |
| 07/18/1996 | WO1996021793A1 Drilling and pipe laying unit |
| 07/18/1996 | CA2208681A1 Drilling and pipe laying unit |
| 07/17/1996 | EP0721540A1 Positioning apparatus for a power tong |
| 07/16/1996 | US5535645 Power tong with improved guard and method |
| 07/11/1996 | WO1996021081A1 Apparatus for deploying wireline |
| 07/11/1996 | CA2154976A1 Apparatus and method for installing coiled tubing in a well |
| 07/03/1996 | CN2230347Y Back-off device for sucker rod |
| 06/26/1996 | EP0426788B1 High-pressure pipe string for continuous fusion drilling of deep wells, process and device for manufacturing, propelling and dismantling it |
| 06/20/1996 | WO1996018799A1 Method and apparatus for connecting and disconnecting tubulars |
| 06/20/1996 | DE4446688A1 Workpiece screw=down implement onto threaded section of carrier |
| 06/19/1996 | EP0533659B1 Apparatus for connecting and disconnecting threaded members |
| 06/12/1996 | EP0715679A1 Arrangement for mounting slides |
| 06/12/1996 | EP0551351B1 Method and equipment for aligning the feeding beam of a rock drilling equipment |
| 06/12/1996 | CN1124516A Drilling arrangement and drilling feed mechanism |
| 06/12/1996 | CN1124513A Rock drill |
| 06/11/1996 | US5524867 Drift gauge rod pushing device |
| 06/11/1996 | US5524716 Bi-directionally extensible tool driving apparatus |
| 06/11/1996 | US5524710 Hanger assembly |
| 06/05/1996 | EP0715057A1 Lead pipe configuration for underground pipe laying |
| 06/04/1996 | CA2079071C Method and apparatus for drilling bore holes under pressure |
| 05/28/1996 | US5520369 Method and device for withdrawing an element fastened to a mobile installation from the influence of the movements of this installation |
| 05/28/1996 | US5520072 For gripping a pipe |
| 05/22/1996 | EP0712992A2 Drill pipe breakout device |
| 05/22/1996 | EP0712499A1 Improved slick line system with real-time surface display |
| 05/21/1996 | US5518076 Grease applicator for a drill shaft |
| 05/21/1996 | US5517774 Earth boring rotary tool with axial feed |
| 05/19/1996 | CA2156560A1 Drill pipe breakout device |
| 05/15/1996 | EP0711377A1 Jaw clamp for a mechanical or hydraulic rod lifter |