Issued Patents All Time
Showing 1–4 of 4 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5392609 | Process and apparatus for the production of impure oxygen | Jean-Louis Girault, Jean-Pierre Tranier | 1995-02-28 |
| 5323616 | Process for cooling a gas in an apparatus for exploiting gases present in the air | Denis Chretien | 1994-06-28 |
| 5291737 | Process or apparatus for distilling air and application in feeding gas to a steel mill | Francois Camberlein, Jean-Louis Girault, Jean-Pierre Tranier | 1994-03-08 |
| 4977746 | Process and plant for separating air and producing ultra-pure oxygen | Maurice Grenier | 1990-12-18 |