Issued Patents All Time
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 7230123 | Ureido or carbamate derivatives of crown ethers and of silicon usable for preparing supports intended for the separation by chromatography of metal cations and of organic molecules comprising amine functional groups | Yves Barre, Marc Simon, Raphael Duval | 2007-06-12 |
| 4824570 | Apparatus for the extraction of constituents by a supercritical fluid or pressurized liquid | Louis Bethuel, Maurice Carles | 1989-04-25 |