Issued Patents 1982
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4316972 | Polymers from nitrogen heterocyclic compounds | — | 1982-02-23 |
KP
Karel Petrak
Overall (1982): #49,716 of 81,411Top 65%
1
Patents 1982