Issued Patents All Time
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4721258 | Roll-and-race pulverizer with rotating throat | Donald R. Dougan, Gerald W. Peters | 1988-01-26 |
| 4687145 | Roll-and-race pulverizer with rotating throat | Donald R. Dougan, Gerald W. Peters | 1987-08-18 |
| 4274587 | Water cooled burner nozzle for solvent refined coal | Paul L. Cioffi, William Downs, William E. Newkirk | 1981-06-23 |