Issued Patents All Time
Showing 1–4 of 4 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6338838 | Photostable cosmetic light screening compositions | Guy Berset, Gilbert Pittet, Joel Richard | 2002-01-15 |
| 6165451 | Cosmetic light screening composition | Alain Bringhen, Hans Ulrich Gonzenbach, Rolf Schwarzenbach | 2000-12-26 |
| 6069170 | Light screening compounds and compositions | Alain Bringhen, Hans Ulrich Gonzenbach, Magali Pochon | 2000-05-30 |
| 5985251 | Light screening compositions | Hans Ulrich Gonzenbach, Alain Bringhen | 1999-11-16 |