Issued Patents All Time
Showing 1–6 of 6 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5977287 | Treatment of aqueous systems using a chemically modified tannin | David B. Mitchell, Ralph L. Minnis, Steven M Deboo, John A. Kelly, Rashmi Patwardhan +1 more | 1999-11-02 |
| 5843337 | Treatment of aqueous systems using a chemically modified tannin | David B. Mitchell, Ralph L. Minnis, Steven M Deboo, 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, Steven M Deboo, John A. Kelly, Rashmi Patwardhan +1 more | 1998-11-03 |
| 5298186 | Paint spray booth organic detackification treatment | David B. Mitchell, Wun Ten Tai, Gary G. Engstrom | 1994-03-29 |
| 5248440 | Paint spray booth treatment of waterborne coatings | David B. Mitchell | 1993-09-28 |
| 4904393 | Method for controlling overspray in paint spray booths | David B. Mitchell | 1990-02-27 |