Issued Patents 1989
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4857525 | Quaternary ammonium retinoates, their use in cosmetics and in dermopharmacy | Michel Philippe, Henri Sebag, Jean-Luc Leveque | 1989-08-15 |
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4857525 | Quaternary ammonium retinoates, their use in cosmetics and in dermopharmacy | Michel Philippe, Henri Sebag, Jean-Luc Leveque | 1989-08-15 |