Issued Patents All Time
Showing 26–35 of 35 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4857174 | Method of beneficiating phosphate ores | Dursun E. Ince | 1989-08-15 |
| 4814069 | Method of beneficiating phosphate ores | Dursun E. Ince | 1989-03-21 |
| 4382515 | Separation of limestone from limestone ore | — | 1983-05-10 |
| 4352731 | Apparatus for selective wetting of particles | John G. Roeschlaub | 1982-10-05 |
| 4326950 | Process for separating oil shale waste material | David Messenger | 1982-04-27 |
| 4284499 | Apparatus for the float concentration of ore | Booker W. Morey | 1981-08-18 |
| 4235708 | Method of separating a mixture of ore particles | Booker W. Morey, David Messenger | 1980-11-25 |
| 4208272 | Separation of limestone from limestone ore | — | 1980-06-17 |
| 4208273 | Separation of coal from waste material | David Messenger | 1980-06-17 |
| 4207175 | Separation of magnesite from ores which also contain calcite or dolomite | — | 1980-06-10 |