Issued Patents All Time
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6660165 | Method for regenerating inorganic porous particles, method for purifying water, and continuous water purification device | Nobukazu Onishi | 2003-12-09 |
| 4258136 | Process for producing wood adsorbents for mercury ions by graft polymerization of acrolein onto xanthated wood meal followed by conversion to thiosemicarbazone | Toshihiro Murayama | 1981-03-24 |