Issued Patents 1989
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4814453 | Naphthalimides containing sulfuric acid ester groups, a process for their preparation and their use | Erich Schinzel | 1989-03-21 |
TM
Thomas Martini
Overall (1989): #50,368 of 140,708Top 40%
1
Patents 1989