Issued Patents All Time
Showing 1–11 of 11 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6683208 | Optically active diphosphines, preparation thereof according to a process for the resolution of the racemic mixture and use thereof | Francois Mathey, Frederic Robin, Michel Spagnol | 2004-01-27 |
| 6632969 | Method for separating a diphosphine diastereoisomers | Michel Spagnol, Francois Mathey, Frederic Robin | 2003-10-14 |
| 6613945 | Resolution method for a racemic mixture of aldehydes | Stéphane Lelievre, Francois Mathey, Michel Spagnol | 2003-09-02 |
| 6521795 | 6,6′-bis-(1-phosphanorbornadiene) diphosphines, their preparation and their uses | Francois Mathey, Michel Spagnol, Frederic Robin, Virginie Mouries | 2003-02-18 |
| 6380412 | Optically active diphosphines, preparation thereof according to a process for the resolution of the racemic mixture and use thereof | Francois Mathey, Frederic Robin, Michel Spagnol | 2002-04-30 |
| 6288279 | 6',6-bis-(1-phosphanorbornadiene) diphosphines | Francois Mathey, Michel Spagnol, Frederic Robin, Virginie Mouries | 2001-09-11 |
| 6166257 | Asymmetric hydrogenation method of a ketonic compound and derivative | Francois Mathey, Frederic Robin, Michel Spagnol | 2000-12-26 |
| 6037493 | Optically active diphosphines, preparation thereof according to a process for the resolution of the racemic mixture and use thereof | Francois Mathey, Frederic Robin, Michel Spagnol | 2000-03-14 |
| 5783738 | Optically active diphosphines, preparation thereof according to a process for the resolution of the racemic mixture and use thereof | Francois Mathey, Frederic Robin, Michel Spagnol | 1998-07-21 |
| 4948294 | Control device for underground drainage and irrigation network | — | 1990-08-14 |
| 4890955 | Control device for underground drainage network | — | 1990-01-02 |