Issued Patents All Time
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5523066 | Treatment of lead sulphide bearing minerals | Robert A. Geisler | 1996-06-04 |
| 4648962 | Method of breaking down chemisorption bond of clay-containing heavy oil water emulsions | Charles E. Capes, Richard D. Coleman, William L. Thayer | 1987-03-10 |
| 4229293 | Dewatering of slimes from phosphate ores | Bruce F. Caswell | 1980-10-21 |