Issued Patents All Time
Showing 1–8 of 8 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 7368409 | Regeneration method of heterogeneous catalysts and adsorbents | James M. Robinson, Georges Mendakis, Francois Locatelli, Pierre Dufresnce | 2008-05-06 |
| 6294498 | Protection of catalysts by deposition of a protective layer | Joan Darcissac, Franck Labruyere, Pierre Dufrense | 2001-09-25 |
| 6100216 | Process for incorporating sulfur into the pores of a hydrocarbon treatment catalyst | Pierre Dufresne, Jean Darcissac, Franck Labruyere | 2000-08-08 |
| 6077803 | Process for off-site preconditioning of a hydrocarbon processing catalyst | Pierre Dufresne | 2000-06-20 |
| 5985787 | Catalyst presulphuration process using two different presulphuration agents | Pierre Dufresne, Stephen R. Murff | 1999-11-16 |
| 5922638 | Process for presulfurizing hydrotreatment catalysts | Pierre Dufresne | 1999-07-13 |
| 5854162 | Offsite regeneration process for a catalyst containing at least one precious metal | Pierre Dufresne | 1998-12-29 |
| 5482616 | Process for hydrogenation and/or dehydrogenation | John Wilhelm Geus, Eugene G. M. Kuijpers | 1996-01-09 |