Issued Patents 1989
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4870363 | Apparatus for creating a magnetic field gradient and the examination of a surface layer of a body | Mohamed M. Yassine, Bernard Querleux, Luc Darrasse, Herve Saint Jalmes, Jacques Taquin +1 more | 1989-09-26 |
| 4857525 | Quaternary ammonium retinoates, their use in cosmetics and in dermopharmacy | Michel Philippe, Henri Sebag, Didier S. Leger | 1989-08-15 |