Issued Patents All Time
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| H708 | Method of producing diacetone sorbose | Youichi Oka, Masao Yokoyama | 1989-11-07 |
| 4717697 | Method of regenerating zeolite to remove acetone and water | Kiyomitsu Kunugiza, Tadaaki Yamamoto | 1988-01-05 |