Issued Patents 1994
Showing 1–4 of 4 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5355680 | Process and installation for producing gaseous nitrogen with variable flow rate | Bernard Darredeau, Maurice Grenier, Francois Venet | 1994-10-18 |
| 5349824 | Process for the mixed production of high and low purity oxygen | Bao Ha | 1994-09-27 |
| 5333463 | Production and installation for the production of gaseous nitrogen at several different purities | Francois Venet | 1994-08-02 |
| 5315833 | Process for the mixed production of high and low purity oxygen | Bao Ha | 1994-05-31 |