Issued Patents All Time
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 11285187 | Petasites extract and composition and method for treating viral infections | Jurgen Drewe, Stephan Toff | 2022-03-29 |
| 10517912 | Petasites extract and composition and method for treating viral infections | Jurgen Drewe, Stephan Toff | 2019-12-31 |