Issued Patents 1989
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4822375 | Dyeing compositions for keratinous fibres based on indole derivatives, and new compounds | Gerard Lang, Herve Richard, Alex Junino | 1989-04-18 |
| 4814162 | Cosmetic compositions containing hydroxyl derivatives of dibenzoylmethane and their use in protecting the skin against ultraviolet rays and derivatives for use therein | Gerald S. Lang, Alain Malaval | 1989-03-21 |