Issued Patents All Time
Showing 1–5 of 5 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5515687 | Process and installation for the production of oxygen and/or nitrogen under pressure | — | 1996-05-14 |
| 5505050 | Process and installation for the distillation of air | Frederic Bernard, Jean-Yves Lehman | 1996-04-09 |
| 5440885 | Process and installation for the production of ultra-pure nitrogen by distillation of air | — | 1995-08-15 |
| 5404725 | Process and installation for producing nitrogen and oxygen | — | 1995-04-11 |
| 5333683 | Indirect heat exchanger | Alain Grelaud, Francois Venet | 1994-08-02 |