Issued Patents 1989
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4889897 | Oxidation of polyethylene | Ludwig Schuster, Albert Hettche, Werner Liedy, Stefan Weiss | 1989-12-26 |
LE
Leo Ehemann
Overall (1989): #84,114 of 140,708Top 60%
1
Patents 1989