Issued Patents 1982
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4362890 | Process for the preparation of unsaturated quaternary ammonium salts | Iwao Ohshima | 1982-12-07 |
YN
Yasutaka Nakashima
Nitto Chemical Industry Co.: 1 patents #6 of 18Top 35%
Overall (1982): #22,471 of 81,411Top 30%
1
Patents 1982