Issued Patents All Time
Showing 1–12 of 12 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 9873626 | Bioreactor | — | 2018-01-23 |
| 9845256 | Activated sludge treatment method, and method for upgrading existing waste water treatment equipment using said method | — | 2017-12-19 |
| 9573829 | Bioreactor and the waste water treatment method | — | 2017-02-21 |
| 9446972 | Activated sludge treatment method, and method for upgrading existing waste water treatment equipment using said method | — | 2016-09-20 |
| 7618540 | Flocculant for separating and flocculating oil and water | — | 2009-11-17 |
| RE34343 | Method for preventing the bulking of activated sludge | — | 1993-08-17 |
| RE34127 | Method for preventing the bulking of activated sludge | — | 1992-11-17 |
| 4732684 | Method for preventing the bulking of activated sludge | — | 1988-03-22 |
| 4729831 | Method for preventing the bulking of activated sludge | — | 1988-03-08 |
| 4691030 | Process for preparation of alkenylsuccinic anhydrides | — | 1987-09-01 |
| 4581444 | Flocculation of latex particles and production of thermoplastic resin | — | 1986-04-08 |
| 4569991 | Production of thermoplastic resin | — | 1986-02-11 |