Issued Patents All Time
Showing 26–27 of 27 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5096914 | Novel benzopyran derivatives, processes for their preparation and their use and preparations containing the compounds | Wolfgang Stenzel, Ben Armah | 1992-03-17 |
| 5028711 | Novel benzopyran derivatives, processes for their preparation and their use and preparations containing the compounds | Wolfgang Stenzel, Ben Armah | 1991-07-02 |