Issued Patents 1989
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4814506 | Process for preparing 3 halogeno-2-hydroxypropyltrimethylammonium halide | Kazuhiko Katayama, Shigeki Hamaguchi, Takehisa Ohashi, Kiyoshi Watanabe | 1989-03-21 |
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4814506 | Process for preparing 3 halogeno-2-hydroxypropyltrimethylammonium halide | Kazuhiko Katayama, Shigeki Hamaguchi, Takehisa Ohashi, Kiyoshi Watanabe | 1989-03-21 |