Issued Patents 1989
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4841021 | Polypyridinium | Larry R. Krepski, Jerald K. Rasmussen, Steven M. Heilmann, Richard D. Tarr | 1989-06-20 |
AK
Alan R. Katritzky
Overall (1989): #133,438 of 140,708Top 95%
1
Patents 1989