Issued Patents All Time
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5948273 | Water purification process and apparatus | Kanji Yoshida, Haitao Xu | 1999-09-07 |
| 5922209 | Process for deactivating or destroying microorganisms | Kanji Yoshida, Haitao Xu | 1999-07-13 |