Issued Patents All Time
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4721734 | Photosensitive hydroxylalkylphenones | Manfred Kieser | 1988-01-26 |
| 4489057 | U.V. Absorbing cosmetic compositions | Reiner Welters, Gernot Moeschl | 1984-12-18 |
| 4477681 | Photosensitive hydroxyalkylphenones | Manfred Kieser | 1984-10-16 |