| Patents for F16L 15 - Screw-threaded joints; Forms of screw-threads for such joints (5,444) |
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| 08/08/1984 | EP0114856A1 Luer connection system. |
| 08/02/1984 | WO1984002948A1 Tubular coupling with improved metal to metal seal |
| 08/02/1984 | WO1984002947A1 Tubular joint with trapped mid-joint metal to metal seal |
| 07/18/1984 | EP0113532A1 Coupling |
| 07/10/1984 | US4458925 For connecting sections to a pipe |
| 07/03/1984 | CA1170293A1 Tool joint bench mark |
| 06/05/1984 | US4452473 Luer connection system |
| 05/30/1984 | EP0109541A1 Pipe string tie-back connector |
| 05/23/1984 | EP0108980A2 Tubular connection |
| 05/15/1984 | CA1167331A1 Method for surface treatment of threading |
| 04/26/1984 | WO1984001610A1 Pipe string tie-back connector |
| 04/24/1984 | US4444421 Driveable pile connections |
| 04/17/1984 | CA1165791A1 Threaded joint with high gas-leak-tightness for oil and gas well pipe |
| 04/10/1984 | US4441745 Coupling pipe part for interconnecting corrugated pipe parts |
| 04/04/1984 | EP0104720A1 Tubular connection |
| 03/27/1984 | US4438953 Tool joint bench mark |
| 03/27/1984 | CA1164499A1 Tubing joints, especially for the petroleum industry |
| 03/07/1984 | EP0102161A1 Coupling |
| 02/28/1984 | US4433862 Pipe joint |
| 02/21/1984 | US4432570 Coupling |
| 02/16/1984 | WO1984000595A1 Luer connection system |
| 02/16/1984 | WO1984000576A1 Tapered threaded member with guide |
| 02/14/1984 | US4431219 Replaceable tubular connector |
| 02/14/1984 | CA1162211A1 Coupling |
| 02/08/1984 | EP0100259A1 Snap action device for tubes or casings, especially for offshore drilling |
| 02/07/1984 | US4429904 Self-aligning connector |
| 02/07/1984 | CA1161883A1 Threaded joint with high gas-leak-tightness for oil and gas well pipe |
| 01/31/1984 | US4428602 Inner tube element for a double tube coring apparatus and process for the manufacture of this tube element |
| 01/25/1984 | EP0099293A2 Locking process and device for threaded joints |
| 01/17/1984 | US4426105 Joints for pipes, particularly intended for the oil industry |
| 01/03/1984 | US4423893 Self-sealing tapered thread form |
| 12/21/1983 | EP0096175A1 Weldless joint |
| 11/23/1983 | EP0094509A2 Coupling for tubing or casing and method of assembly |
| 11/23/1983 | EP0094504A1 Lock mechanism for a carriage assembly particularly for use in a disk storage device |
| 11/08/1983 | US4414247 Method for surface treatment of threading |
| 11/01/1983 | CA1156287A1 Tube joint for the petroleum industry |
| 10/19/1983 | EP0091844A1 Sealing ring placed between an apparatus and a screw joint for high-pressure pipelines |
| 10/18/1983 | US4410204 Connector |
| 10/04/1983 | US4407527 Self-aligning connector assembly |
| 09/21/1983 | EP0089253A1 Coupling for steel pipes for withstanding high pressures, and showing little tendency to seizing |
| 09/07/1983 | EP0087557A1 Pipe connection for metal pipes |
| 09/07/1983 | EP0087556A1 Pipe connection for metal pipes |
| 09/06/1983 | US4402532 Detachable pipe joint |
| 08/16/1983 | US4398756 Cylindro-conical pipe joint |
| 08/10/1983 | EP0085647A1 Gas-tight oil well pipe connection |
| 08/09/1983 | US4397484 Locking coupling system |
| 07/20/1983 | EP0084009A1 Pipe joint, in particular for oil pipes |
| 07/20/1983 | EP0083675A1 Protection sleeve and socket for oil pipes |
| 07/19/1983 | US4393595 Tube adjustment gasket and rifle scope employing same |
| 06/14/1983 | CA1148193A1 Coupling for interconnecting pipe sections and pipe section for well drilling operations |
| 06/07/1983 | CA1147774A1 Connecting piece for a line or an apparatus to be screwed therein to provide a closed pressure-fluid circuit and method of manufacturing same |
| 05/24/1983 | US4384737 Threaded joint for well casing and tubing |
| 05/03/1983 | US4381868 Pressure-actuated wellhead sealing assembly |
| 04/12/1983 | US4379575 Composite coupling |
| 03/22/1983 | US4377302 Threaded joint with high gas-leak-tightness for oil and gas well pipe |
| 03/01/1983 | US4375297 Quick coupling device |
| 02/15/1983 | US4373754 Threaded connector |
| 02/15/1983 | US4373750 Joint for pipe intended for petroleum industry |
| 12/28/1982 | CA1138490A1 Rotary shouldered connection modification |
| 10/06/1982 | EP0061752A1 Sealing device |
| 10/06/1982 | EP0061553A1 Method for the surface treatment of screw threads |
| 10/05/1982 | CA1132900A1 Turning ring connector, particularly for a tube string used in offshore oil fied investigation of production |
| 09/22/1982 | EP0060549A1 Thread-type pipe connector |
| 08/31/1982 | US4346920 Threaded connection using variable lead threads |
| 08/19/1982 | WO1982002754A1 Insulated drill collar gap sub assembly for a toroidal coupled telemetry system |
| 08/04/1982 | EP0056930A1 Synthetic resin inner tube element for a double tube core barrel, and method of making said tube |
| 07/27/1982 | CA1128576A1 Split threaded coupling nut |
| 04/27/1982 | CA1122624A1 Safety pipe coupling |
| 03/03/1982 | EP0046616A1 Coupling pipe part for interconnecting corrugated pipe parts and pipe connection |
| 03/02/1982 | US4317585 Torqued drill pipe identification |
| 02/03/1982 | EP0044888A1 Improvements in or relating to couplings |
| 01/27/1982 | EP0044778A2 Joint for pipes intended in particular for the petroleum industry |
| 01/05/1982 | CA1115746A1 Pipe coupling and pipe joint connection |
| 11/24/1981 | CA1113137A1 Universal adapter fitting |
| 10/27/1981 | US4296954 Pipe coupling and pipe joint connection |
| 10/13/1981 | US4294559 Pre-stressed structural joint |
| 09/15/1981 | US4289334 Socket connection for an enamelled vessel |
| 08/11/1981 | CA1106923A1 Treating, including induction heating of well pipe connections |
| 07/28/1981 | US4280719 Connector with rotatable locking ring, particularly for a riser used in offshore oil exploration and production |
| 07/22/1981 | EP0032265A1 Coupling for interconnecting pipe sections, and pipe section for well drilling operations |
| 07/01/1981 | EP0031125A1 Releasable pipe connection |
| 06/16/1981 | USRE30647 Tubular connection |
| 04/29/1981 | EP0027771A1 Pipe joint for the oil industry |
| 04/29/1981 | EP0027449A1 Quick coupling device |
| 03/03/1981 | US4253687 Pipe connection |
| 02/10/1981 | CA1095553A1 Pipe connectors |
| 01/27/1981 | CA1094598A1 Faucet nut assembly |
| 01/14/1981 | EP0022293A1 Tube joint to be screwed into a conduit or into an apparatus for creating a closed circulation circuit of a pressurized fluid, and method for making same |
| 01/13/1981 | US4244607 Cylindrical threaded connection |
| 12/02/1980 | US4236606 Friction braking type vibration damper |
| 11/12/1980 | EP0018958A1 Quick coupling device |
| 10/30/1980 | WO1980002316A1 Quick coupling device |
| 08/26/1980 | CA1084553A1 Casing joint |
| 08/05/1980 | CA1083052A1 Tubular element end protectors |
| 07/22/1980 | CA1082247A1 Pipe section and coupling |
| 05/27/1980 | CA1078428A2 Dovetail connection for pin and box joints |
| 05/06/1980 | CA1077015A1 Inner tube for screw jack |
| 04/02/1980 | EP0009368A1 Pipe coupling and pipe joint connection |
| 03/25/1980 | CA1074364A1 Oil well tube fittings |
| 03/11/1980 | US4192533 Dovetail connection for pin and box joints |