Issued Patents All Time
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5750492 | Surfactants based on quaternary ammonium compounds preparation processes softening bases and compositions derived | Stephane Courdavault Duprat, Yvan Storet, Jean-Francois Vindret | 1998-05-12 |
| 5637743 | Quaternary ammonium surfactants derived from tertiary amines and fabric softeners containing quaternary ammonium surfactants | Stephane Courdavault Duprat, Lionel Godefroy, Paul Nivollet, Didier Ray, Yvan Storet +1 more | 1997-06-10 |