Issued Patents All Time
Showing 1–4 of 4 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5977287 | Treatment of aqueous systems using a chemically modified tannin | David B. Mitchell, Ralph L. Minnis, Thomas Peter Curran, John A. Kelly, Rashmi Patwardhan +1 more | 1999-11-02 |
| 5904158 | Thermo responsive method of removing cured paint | David B. Mitchell, Ralph L. Minnis, Gene Wayman, Mark J. Deschryver | 1999-05-18 |
| 5843337 | Treatment of aqueous systems using a chemically modified tannin | David B. Mitchell, Ralph L. Minnis, Thomas Peter Curran, John A. Kelly, Rashmi Patwardhan +1 more | 1998-12-01 |
| 5830315 | Treatment of Aqueous systems using a chemically modified tannin | David B. Mitchell, Ralph L. Minnis, Thomas Peter Curran, John A. Kelly, Rashmi Patwardhan +1 more | 1998-11-03 |