Issued Patents All Time
Showing 1–12 of 12 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 7175512 | Cutting chain grinder and method of grinding | Daniel Haile | 2007-02-13 |
| 6964101 | Lightweight guide bar for chainsaw | Sandra Graves, R. Mark Poff | 2005-11-15 |
| RE37288 | Saw chain cutter with bent over depth gauge | James O. Burrows, Randall D. Jensen | 2001-07-24 |
| 6061915 | Tightening mechanism for chain saw guide bar | Christopher D. Seigneur, Mark D. Lamey | 2000-05-16 |
| 6049986 | Chain saw guide bar equipped with chain tensioner | Eugene E. Calkins, Mark D. Lamey | 2000-04-18 |
| 5974933 | Depth gauge for a cutter | James O. Burrows, Randall D. Jensen, Robert J. Penberthy | 1999-11-02 |
| 5896670 | Chain tensioner for chain saw | Duane M. Gibson, Arvin A. Hille, Johann Weber | 1999-04-27 |
| 5740715 | Cutter with bent over depth gauge | James O. Burrows, Randall D. Jensen | 1998-04-21 |
| 5666871 | Saw chain cutter with bent over depth gauge | James O. Burrows, Randall D. Jensen | 1997-09-16 |
| 4785700 | Cutter link for saw chain having guide surface for sharpening | Michael V. Petrovich, Duane M. Gibson, Kenneth R. Day | 1988-11-22 |
| 4782731 | Brush cutting blade | — | 1988-11-08 |
| 4581968 | Saw chain with improved cutting depth control | Duane M. Gibson, Lewis A. Scott, William G. Killen | 1986-04-15 |