Issued Patents All Time
Showing 1–7 of 7 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 7151190 | Method for making aqueous solutions of unsaturated quaternary ammonium salts | Alain Riondel, Marc Esch | 2006-12-19 |
| 7084296 | Method for making aqueous solutions of (meth)acryloyloxyethylbenzyldimethylammonium chlorides | Alain Riondel, Serge Tretjak | 2006-08-01 |
| 6683203 | Process for the manufacture of aqueous solutions of unsaturated quaternary ammonium salts | Thierry Druzkowski, Serge Tretjak, Alain Riondel | 2004-01-27 |
| 6521782 | Method for making aqueous solutions of unsaturated quaternary ammonium salts | Alain Riondel, Marc Esch, Eric Delaunay, Peter J. N. Meyer | 2003-02-18 |
| 5637689 | Process for the preparation of alkylimidazolidone (meth) acrylate(s) | Alain Riondel | 1997-06-10 |
| 5610313 | Process for the preparation of alkylimidazolidone (meth) acrylates | Alain Riondel, Andr e Levray | 1997-03-11 |
| 5498723 | Process for the preparation of alkylimidazolidone (meth)-acrylates | Alain Riondel, Marc Esch | 1996-03-12 |