Issued Patents All Time
Showing 1–13 of 13 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 7007728 | Knuckle boom for reaching and pulling and hydraulic circuits therefor | — | 2006-03-07 |
| 6997221 | Reach actuation for energy saving hydraulic knuckle booms | Grant J. Somerville | 2006-02-14 |
| 6681818 | Hydraulic circuits for tree-harvesting knuckle booms | — | 2004-01-27 |
| 6443196 | Hydraulic circuits for tree-harvesting knuckle booms | — | 2002-09-03 |
| 6363980 | Accumulating tree felling head with picker arm | — | 2002-04-02 |
| 6196106 | Tree felling disc saw with replaceable arcuate teeth | Duane Anthony Barlow, Leonard Cobb Cole, Andrew Robert Hoshel | 2001-03-06 |
| 6152201 | Tree felling disc saw head with large tree accumulation area | — | 2000-11-28 |
| 5931210 | Tree felling disc saw head with large tree accumulation area | — | 1999-08-03 |
| 5794674 | Tree felling disc saw held with large accumulation area | — | 1998-08-18 |
| 5697412 | High capacity feller heads | — | 1997-12-16 |
| 4491163 | Method and apparatus for felling trees | — | 1985-01-01 |
| 4451194 | Integral heel tree length grapple | Kevin Keats | 1984-05-29 |
| 4446897 | Improvements in disc felling heads | — | 1984-05-08 |