Issued Patents All Time
Showing 1–7 of 7 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 7096970 | Compact bed edging machine | Roger D. Porter | 2006-08-29 |
| 6874581 | Compact bed edging machine | Roger D. Porter | 2005-04-05 |
| 6651361 | Compact machine for trenching and for installing cable, wire, tubing, and the like | Roger D. Porter | 2003-11-25 |
| 6457267 | Trenching and edging system | Roger D. Porter | 2002-10-01 |
| D463804 | Trencher blade for earth working machine | Roger D. Porter | 2002-10-01 |
| D451930 | Edger blade | Roger D. Porter | 2001-12-11 |
| D451103 | Folding handle for earth working machine | Roger D. Porter | 2001-11-27 |