Issued Patents All Time
Showing 1–4 of 4 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5685173 | Process and plant for the production of a gas under pressure by cryogenic distillation | Mike De L'Isle | 1997-11-11 |
| 5626036 | Process for the production of oxygen by cryogenic distillation | — | 1997-05-06 |
| 5586451 | Process and installation for the production of oxygen by distillation of air | Philippe Fraysse | 1996-12-24 |
| 5341647 | Porcess and apparatus for the production of high pressure nitrogen and oxygen | Jean-Pierre Tranier | 1994-08-30 |