Issued Patents All Time
Showing 1–7 of 7 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 7793662 | Earplug | — | 2010-09-14 |
| 7243868 | Hammer for a hammermill | — | 2007-07-17 |
| 7134623 | Hammermill | — | 2006-11-14 |
| 6926215 | Hammermill | — | 2005-08-09 |
| 5904306 | Slow speed hammermill for size reduction of wood chips | John R. Blake | 1999-05-18 |
| 5842653 | Slow speed hammermill for size reduction of wood chips | John R. Blake | 1998-12-01 |
| 4627625 | Air seal between relatively moveable ducts | Samuel Craig Johnson | 1986-12-09 |