Issued Patents All Time
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6758730 | Grinding machine and method of grinding grass mower rotary blades | — | 2004-07-06 |
| 6471569 | Rotary mower blade grinder | — | 2002-10-29 |
| 6206761 | Bedknife grinding device | — | 2001-03-27 |
| 5725415 | Grinding machine and method of sharpening grass mower bedknives | — | 1998-03-10 |
| D320607 | Machine guard | David A. Smith | 1991-10-08 |
| 4694613 | Relief grinding of lawn mower cylindrical blades | — | 1987-09-22 |