Issued Patents 1997
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5681449 | Process for producing oil from organic material-containing sludge | Shinya Yokoyama, Michio Kuriyagawa, Tomoko Ogi, Hideo Kobayashi, Tomoaki Minowa +1 more | 1997-10-28 |