Issued Patents All Time
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4891440 | Process for producing unsaturated quaternary ammonium slats | Yoshirou Nagatsu, Akiyoshi Nagamoto, Kazuya Harada | 1990-01-02 |
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4891440 | Process for producing unsaturated quaternary ammonium slats | Yoshirou Nagatsu, Akiyoshi Nagamoto, Kazuya Harada | 1990-01-02 |