Issued Patents All Time
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4650129 | Capped disc for hammer mill rotor | Paul D. Popovich, John R. Ewing | 1987-03-17 |
| 4619029 | Method of retrofitting a hammer mill rotor | A. Scott Newell, Jr., Paul D. Popovich, John R. Ewing | 1986-10-28 |
| 4504019 | Hammer mill having capped disc rotor | Paul D. Popovich, John R. Ewing | 1985-03-12 |