Issued Patents 1989
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4871481 | Preparation of 1,4-diamino-2,3-dicyanoanthraquinone | Eberhard Michaelis | 1989-10-03 |
PM
Peter Miederer
Overall (1989): #69,528 of 140,708Top 50%
1
Patents 1989