Issued Patents All Time
Showing 26–31 of 31 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4691001 | Process for making solid urea-formaldehyde resins | — | 1987-09-01 |
| 4638953 | Classifier for comminution of pulverulent material by fluid energy | — | 1987-01-27 |
| 4412839 | Coal treatment process | — | 1983-11-01 |
| 4394132 | Particulate coal-in-liquid mixture and process for the production thereof | — | 1983-07-19 |
| 4288231 | Coal treatment process | — | 1981-09-08 |
| 4219164 | Comminution of pulverulent material by fluid energy | — | 1980-08-26 |