Issued Patents All Time
Showing 1–7 of 7 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 11570955 | Wood chipper with novel braking mechanism | Mark D. Thompson, Hugo Whetsell Hayden, Robert Wyatt | 2023-02-07 |
| 11297782 | Stump cutter and wood chipper with novel braking mechanism | Mark D. Thompson, Hugo Whetsell Hayden, Robert Wyatt | 2022-04-12 |
| 7086432 | Flex coupling for grinders and chippers | — | 2006-08-08 |
| 6484766 | Stump grinding apparatus having improved cutter tool | John T. Bird | 2002-11-26 |
| 6305445 | Stump grinding machine having improved cutting boom support structure | — | 2001-10-23 |
| 6003570 | Stump grinder machine having turntable mounted engine arrangement | John T. Bird, Kenneth W. Kilpatrick | 1999-12-21 |
| 5279345 | Stump cutter bracket | Richard G. LeMaux | 1994-01-18 |