Issued Patents 1989
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4857613 | Preparation of homopolymers and copolymers of propene using a Ziegler-Natta catalyst system | Ralf Zolk, Rainer Hemmerich | 1989-08-15 |
JK
Juergen Kerth
Overall (1989): #91,697 of 140,708Top 70%
1
Patents 1989