Issued Patents All Time
Showing 26–29 of 29 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4582596 | Frothers demonstrating enhanced recovery of coarse particles in froth floatation | Robert D. Hansen, Roger W. Bergman | 1986-04-15 |
| 4411927 | Method for grinding cereal grains in the presence of grinding aids | Mauricio Bermudez, Steven D. Sands | 1983-10-25 |
| 4384010 | Grinding aids for the grinding of cereal grains | Mauricio Bermudez, Steven D. Sands | 1983-05-17 |
| 4274599 | Ore grinding process including a grinding aid of an anionic polyelectrolyte | Willy Manfroy | 1981-06-23 |