Issued Patents All Time
Showing 1–4 of 4 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5780042 | Synergistic light protection combinations and cosmetic and dermatological formulations comprising such combinations | Heinrich Gers-Barlag, Anja Müller, Gerhard Sauermann | 1998-07-14 |
| 5658556 | Cosmetic or dermatological preparations comprising hydrophobicized inorganic pigments for preserving the urocaninic acid state of the skin | Heinrich Gers-Barlag, Sabine Schulz, Ulrich Hintze, Robert Schmucker | 1997-08-19 |
| 5620680 | Cosmetic and dermatological light protection formulations having an active content of cis-urocaninic acid | Franz Stab, Gerhard Sauermann | 1997-04-15 |
| 5520905 | Cosmetic or dermatological preparation comprising delta-aminolevulinic acid content as an active ingredient | Tobias Mann, Heinrich Gers-Barlag, Gerhard Sauermann | 1996-05-28 |