Issued Patents All Time
Showing 1–22 of 22 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5874636 | Process for the preparation of terpenic ketones | Claude Mercier | 1999-02-23 |
| 5449836 | Process for the preparation of vitamin A and intermediate compounds which are useful for this process | — | 1995-09-12 |
| 5426247 | Process for the preparation of vitamin A and intermediate compounds which are useful for this process | — | 1995-06-20 |
| 5292897 | Process for preparing halo acetals from enamines | Lucette Duhamel, Pierre Duhamel, Jérôme Emile Georges Guillemont, Jean-Marie Poirier | 1994-03-08 |
| 5250710 | Dihydropyran derivatives, processes for preparation and use | Lucette Duhamel, Pierre Duhamel, Jérôme Emile Georges Guillemont, Jean-Marie Poirier | 1993-10-05 |
| 5221797 | Process for the purification of pseudo-ionone and a complex formed during said process | Noel Crenne | 1993-06-22 |
| 5202497 | Process for preparing unsaturated aldehydes | Serge Henrot | 1993-04-13 |
| 5177265 | Process for the preparation of citral | Jacques Chazal | 1993-01-05 |
| 5175373 | Process for preparing cyclocitral | Bernard Delmond, Claude Filliatre, Michel Pereyre, Dominique Serramedan | 1992-12-29 |
| 5157133 | Dihydropyran derivatives, processes for preparation and use | Lucette Duhamel, Pierre Duhamel, Jérôme Emile Georges Guillemont, Jean-Marie Poirier | 1992-10-20 |
| 5157131 | Epoxides and a process for their preparation | Bernard Delmond, Claude Filliatre, Michel Pereyre, Dominique Serramedan | 1992-10-20 |
| 5155277 | Process for converting tertiary amine N-oxides to aldehydes | Serge Henrot, Claude Mercier | 1992-10-13 |
| 5145972 | Process for preparing halo acetals from enamines | Lucette Duhamel, Pierre Duhamel, Jérôme Emile Georges Guillemont, Jean-Marie Poirier | 1992-09-08 |
| 4933500 | Process for the preparation of citral | Jacques Chazal | 1990-06-12 |
| 4749814 | Process for the preparation of ethylenic carbonyl compounds | — | 1988-06-07 |
| 4665244 | Chlorinated derivatives of hexadecene, their preparation and their use in the synthesis of vitamin E | Michel Mulhauser | 1987-05-12 |
| 4636570 | Tocopherol derivatives useful in the synthesis of vitamin E and their preparation | Michel Mulhauser | 1987-01-13 |
| 4634778 | Process for preparing chlorinated ethylenic derivatives | Gerard Mignani, Didier Morel | 1987-01-06 |
| 4474983 | Process for preparing compounds having a 1,5-dimethyl-hexa-1,5-dienylene group by desulphonylation of a corresponding sulphone | Marc Julia, Albert Menet | 1984-10-02 |
| 4463196 | Process for the preparation of citral | Emile Kuntz | 1984-07-31 |
| 4433171 | Sulphones having a 1,5-dimethyl-hexa-1,5-dienylene group | Marc Julia, Albert Menet | 1984-02-21 |
| 4331814 | Sulphones having a 1,5-dimethyl-hexa-1,5-dienylene group | Marc Julia, Albert Menet | 1982-05-25 |