Issued Patents All Time
Showing 1–11 of 11 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6576040 | Process and plant with oxygen-enriched air feed for a non-ferrous metal production unit | Didier Magnet | 2003-06-10 |
| 6247333 | Process for supplying impure oxygen to a synthesis-gas production unit | Francois De Bussy | 2001-06-19 |
| 5901577 | Process and plant for air separation by cryogenic distillation | Martine Pelle | 1999-05-11 |
| 5548975 | Process and installation for the separation of a gaseous mixture by cryogenic distillation | Bernard Darredeau, Jean-Yves Lehman | 1996-08-27 |
| 5515688 | Process and installation for the production of oxygen and/or nitrogen under pressure | — | 1996-05-14 |
| 5477689 | Process and installation for the production of gaseous oxygen and/or gaseous nitrogen under pressure | Alain Guillard | 1995-12-26 |
| 5463870 | Process and installation for the production of at least one gas from air under pressure | — | 1995-11-07 |
| 5428962 | Process and installation for the production of at least one gaseous product under pressure and at least one liquid by distillation of air | — | 1995-07-04 |
| 5412953 | Process and installation for the production of gaseous oxygen and/or gaseous nitrogen under pressure by distillation of air | Bernard Darredeau, Catherine Garnier, Alain Guillard, Philippe Fraysse, Jean-Yves Lehman | 1995-05-09 |
| 5408831 | Process and installation for the production of gaseous oxygen under pressure | Alain Guillard | 1995-04-25 |
| 5349827 | Process for the construction of a cryogenic unit for the separation of gas, cryogenic unit, subassembly and transportable assembly for the construction of such a unit | Gilles Bracque, Francois Dehaine, Jean-Pierre Gourbier, Alain Grelaud, Alain Guillard +1 more | 1994-09-27 |