Issued Patents All Time
Showing 1–4 of 4 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5319104 | Derivatives of cyclic lactones, a process for their preparation and a process for the preparation of 15-pentadecanolide and its homologues | Rudolf Hopp, Oskar Koch, Alfred Korber | 1994-06-07 |
| 4562067 | Preparation of novel dibenzoylmethane derivative sunscreen agents | Rudolf Hopp, Roland Langner | 1985-12-31 |
| 4523023 | Preparation of isochromane derivatives | Rudolf Hopp | 1985-06-11 |
| 4455295 | N-(p-Sulfophenyl) cinnamamide as sunscreen agent | Rudolf Hopp, Roland Langner | 1984-06-19 |