Issued Patents All Time
Showing 1–7 of 7 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4828294 | Threaded joint for steel pipes containing a sealing device located at the level of the threading | Paul Bounie | 1989-05-09 |
| 4828295 | Steel tube threaded joint having an impervious device at the level of the threading | Paul Bounie | 1989-05-09 |
| 4665780 | Method of machining threaded pipe-ends | Louis Fradin | 1987-05-19 |
| 4641410 | Method and apparatus for making a joint for steel tubes | Louis Fradin | 1987-02-10 |
| 4614120 | Determination of the make-up torque for pipe joints | Louis Fradin, Herve Salkin | 1986-09-30 |
| 4515020 | Method and apparatus for ensuring correct thread make-up of a pipejoint | — | 1985-05-07 |
| 4426105 | Joints for pipes, particularly intended for the oil industry | Paul Bounie, Jean Mantelle | 1984-01-17 |