Issued Patents 1997
Showing 1–4 of 4 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5685172 | Process and device for the preparation of a flow which is substantially purified with respect to at least one of the impurities oxygen and carbon monoxide | Daniel Gary, Christiane Muller | 1997-11-11 |
| 5666825 | Process and installation for the separation of air | Jean-Yves Lehman, Jean-Marc Peyron | 1997-09-16 |
| 5629208 | Method for controlling impurities in an installation for the separation of air | Amelie Jacomet | 1997-05-13 |
| 5592834 | Process and installation for the separation of air | Jean-Yves Lehman, Jean-Marc Peyron | 1997-01-14 |