| Patents for F16L 15 - Screw-threaded joints; Forms of screw-threads for such joints (5,444) |
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| 02/26/1980 | US4189821 Method of manufacturing screw jack tubes |
| 01/08/1980 | CA1069467A1 Automatic subway coupler |
| 07/31/1979 | CA1059551A1 Dovetail connection for pin and box joints |
| 07/31/1979 | CA1059550A1 Removable locking connector for luer fittings |
| 07/17/1979 | US4161332 Dovetail connection for pin and box joints |
| 07/11/1979 | EP0002689A1 Heat exchange tube |
| 06/26/1979 | CA1057332A1 Thread making fitting for unthreaded conduit |
| 05/15/1979 | US4154466 Pipe section and coupling |
| 05/08/1979 | US4153283 Casing joint |
| 01/23/1979 | CA1046894A1 Adjustable drop nipple |
| 01/09/1979 | US4133095 Treating, including induction heating of well pipe connections |
| 11/28/1978 | US4127343 Inner tube for screw jack |
| 11/21/1978 | CA1042943A1 Tubular connection |
| 11/07/1978 | US4124229 Rigid connector for pipe and method of making the same |
| 10/24/1978 | US4121862 Pipe connection |
| 10/17/1978 | CA1040682A1 Casing joint |
| 09/12/1978 | US4113290 Pressure tight joint for a large diameter casing |
| 09/05/1978 | CA1037946A1 Tool joint wear protectors |
| 07/11/1978 | US4099745 Drill pipe joint |
| 06/06/1978 | US4093281 Method and apparatus for axially loading threaded connectors |
| 06/06/1978 | US4093280 Synthetic resinous pipe joint made up in one-piece with a metallic male screw |
| 04/25/1978 | US4085951 Hydril-type connector |
| 03/28/1978 | US4081083 Automatic subway coupler |
| 03/21/1978 | US4079966 Insulated self-threading fitting |
| 12/20/1977 | US4063756 Self-locking connector |
| 11/29/1977 | US4060264 Swivel conduit coupling assembly |
| 10/18/1977 | US4054305 Thread making fitting for unthreaded conduit |
| 09/27/1977 | US4050722 Joint for conduit |
| 09/06/1977 | US4046479 Removable locking connector for luer fittings |
| 07/05/1977 | US4033615 Port thread |
| 07/05/1977 | US4033167 Process for forming intermediate metal conduit |
| 03/29/1977 | US4014568 Pipe joint |
| 03/01/1977 | US4009893 Tubing or casing joint |
| 02/01/1977 | US4005735 Adapter with thread protector |
| 01/25/1977 | US4004832 Thread form for pipe joints |
| 01/11/1977 | US4002359 Tool joint for drill pipes |
| 12/28/1976 | US3999781 Universal swivel hose coupling |
| 11/30/1976 | US3994516 Telescoping pipe coupling with improved pressure seal connection threads |
| 11/23/1976 | US3993368 Tool joint wear protectors |
| 11/02/1976 | US3989284 Tubular connection |
| 10/19/1976 | US3986583 Force transmitting coupling |
| 08/31/1976 | US3977428 Vacuum sealing apparatus |
| 05/18/1976 | US3957113 Pipe disconnecting apparatus |
| 05/11/1976 | US3956533 Method of applying a sealant to parts to be connected |