Issued Patents All Time
Showing 1–4 of 4 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5248449 | Emulsion breaking using cationic quaternary ammonium starch/gums | David B. Mitchell | 1993-09-28 |
| 5169562 | Emulsion breaking using cationic quaternary ammonium starch/gums | David B. Mitchell | 1992-12-08 |
| 4629603 | Method of inhibiting cold end corrosion in boilers | Gary G. Engstrom, Donald P. Gauwitz | 1986-12-16 |
| 4551261 | Dust suppression with elastomer-containing foam | — | 1985-11-05 |