Issued Patents All Time
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 10201127 | Air assisted thresher | Dale W. MacKenzie | 2019-02-12 |
| 7285043 | Concave for a combine harvester | Dale W. MacKenzie | 2007-10-23 |
| 6258172 | Method and apparatus for boronizing a metal workpiece | Dale W. MacKenzie | 2001-07-10 |