Issued Patents All Time
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6013234 | Silica pigment particulates | Jean-Louis Ray | 2000-01-11 |
| 4243428 | Processes for the manufacturing of precipitated silica | Jean-Baptise Donnet, Bernard Baudru, Georges Vrisakis | 1981-01-06 |