Issued Patents All Time
Showing 1–12 of 12 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 11230753 | Method for extracting rare earth metals | — | 2022-01-25 |
| 10059613 | Removal of contaminants from water | — | 2018-08-28 |
| 9878922 | Removal of contaminants from water | — | 2018-01-30 |
| 9427706 | Removal of selenium from coal mining runoff water | — | 2016-08-30 |
| 9272934 | Removal of selenium from coal mining runoff water | — | 2016-03-01 |
| 6926878 | Method for removing toxic substances in water | — | 2005-08-09 |
| 6093328 | Method for removing toxic substances in water | — | 2000-07-25 |
| 5866014 | Method for removing toxic substances in water | — | 1999-02-02 |
| 5575919 | Method for removing toxic substances in water | — | 1996-11-19 |
| 5200082 | Method for removing toxic substances from industrial and agricultural waste water | Orrie C. Olsen | 1993-04-06 |
| 4940549 | Method for removing toxic metals from agricultural drain water | Orrie C. Olsen | 1990-07-10 |
| 4750454 | Manure digester and power generating system | Anil K. Chatterjee | 1988-06-14 |