Issued Patents All Time
Showing 1–6 of 6 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6555364 | Biological deodorizing apparatus assembled with box-like frame units | — | 2003-04-29 |
| 6224756 | Apparatus for treating organic raw water utilizing anaerobic microorganisms | — | 2001-05-01 |
| 5972212 | Apparatus for treating organic waste water utilizing microorganisms | — | 1999-10-26 |
| 5766938 | Biological deodorizing apparatus with rotary carriers | — | 1998-06-16 |
| 5695010 | Method of drilling around an existing casing pipe to regenerate an old well | — | 1997-12-09 |
| 4775499 | Gas-liquid contacting apparatus | Shiro Saito | 1988-10-04 |