Issued Patents 1989
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4870164 | Symmetrical and asymmetrical disazo compounds having a bis-aryloxy alkane bridge | Rudolf Kuhne | 1989-09-26 |
HH
Heinrich Hamal
Overall (1989): #106,886 of 140,708Top 80%
1
Patents 1989