Issued Patents All Time
Showing 1–4 of 4 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| D725155 | Lawn mower | David McKay, Allan Clifford Smyth, Lun-Yu Tung | 2015-03-24 |
| 8850782 | Lawnmower safety | David McKay, Gordon Boswell | 2014-10-07 |
| 8615975 | Lawnmower safety | David McKay, Gordon Boswell | 2013-12-31 |
| 8544248 | Self-propelled lawn mower with chipper | David McKay, Gordon Boswell | 2013-10-01 |