Issued Patents 1989
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4798891 | Vinylogous porphyrins | Burchard Franck | 1989-01-17 |
MG
Martin Gosmann
Overall (1989): #136,608 of 140,708Top 100%
1
Patents 1989