Issued Patents All Time
Showing 1–7 of 7 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 10017444 | Method for the purification of natural vanillin | Denis Revelant, Martine Vibert | 2018-07-10 |
| 9617198 | Method for the purification of natural vanillin | Denis Revelant, Martine Vibert | 2017-04-11 |
| 9284247 | Method for producing alkoxy-hydroxybenzaldehyde that is substantially free of alkyl-alkoxy-hydroxybenzaldehyde | Laurent Garel | 2016-03-15 |
| 9018421 | Separation of aromatic aldehydes | Jean-Claude Masson | 2015-04-28 |
| 8404085 | Separation and purification of hydroquinone from crude mixtures thereof | Bruno Heinisch | 2013-03-26 |
| 8071817 | Preparation of purified hydroquinone and forming of same | Bruno Heinisch, Jean-Claude Le Thiesse | 2011-12-06 |
| 6100396 | Method for purifying lactams | Philippe Leconte, Philippe Perrona | 2000-08-08 |