Issued Patents All Time
Showing 1–4 of 4 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 10759680 | Preferential removal of hexavalent chromium from contaminated water | Richard R. Willis, Jon E. Ball, Paulina Jakubczak, Mark G. Riley, William C. Schwerin +1 more | 2020-09-01 |
| 5977287 | Treatment of aqueous systems using a chemically modified tannin | David B. Mitchell, Ralph L. Minnis, Thomas Peter Curran, Steven M Deboo, John A. Kelly +1 more | 1999-11-02 |
| 5843337 | Treatment of aqueous systems using a chemically modified tannin | David B. Mitchell, Ralph L. Minnis, Thomas Peter Curran, Steven M Deboo, John A. Kelly +1 more | 1998-12-01 |
| 5830315 | Treatment of Aqueous systems using a chemically modified tannin | David B. Mitchell, Ralph L. Minnis, Thomas Peter Curran, Steven M Deboo, John A. Kelly +1 more | 1998-11-03 |