Issued Patents All Time
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6440307 | Retaining filter, plant and method for treating effluents | Herve Philip | 2002-08-27 |
| 5698775 | Device for locating the position of the separation between two mediums, and a receptacle and a detection process employing the device | Herve Philip | 1997-12-16 |
| 5674383 | Filter for the purification of water | Herve Philip | 1997-10-07 |