Issued Patents 1982
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4331781 | Process for the preparation of a polyvinyl alcohol complex compound in the presence of an organic boric acid derivative | Wolfgang Zimmermann | 1982-05-25 |
GP
Gunther Pospich
Overall (1982): #61,757 of 81,411Top 80%
1
Patents 1982