Issued Patents All Time
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4746069 | Centrifugal media mill | Raymond A. Entrikin, Roy A. Nelson | 1988-05-24 |
| 4684072 | Blade for centrifugal media mill | Roy A. Nelson, Raymond A. Entriken | 1987-08-04 |
| 4582266 | Centrifugal media mill | Raymond A. Entrikin, Roy A. Nelson | 1986-04-15 |