Issued Patents All Time
Showing 1–5 of 5 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4830052 | Diaphragm safety device with upstream active bursting knife | Jean-Luc Le Bras | 1989-05-16 |
| 4786219 | Method and apparatus for machining the wall of a cylindrical tube by milling a groove therein | Gerard Dolhen, Jean-Claude Lemarquis, Philippe Morand | 1988-11-22 |
| 4705259 | Device for sealing an opening and slide valve comprising such a device | Gerard Dolhen, Jean-Claude Lemarquis, Daniel Bandura | 1987-11-10 |
| 4625766 | Isolation and protection device for working on tubing, and in particular on nuclear power station tubing | Gerard Dohlen, Jean-Claude Le Marquis | 1986-12-02 |
| 4573628 | Method for tapping into tubing under a controlled atmosphere, in particular for tubing in a nuclear power station | Gerard Dohlen, Jean-Claude Le Marquis | 1986-03-04 |