Top Inventors at Johnston Engineering All Time
| Rank | Name | Patents |
|---|---|---|
| 1 | Anthony J. Duthie | 7 |
| 2 | Mark Cullen | 2 |
| 3 | Michael Sandford | 2 |
| #4 | Clive Frederick OFFLEY | 1 |
| #5 | Thomas Johnston | 1 |
| Rank | Name | Patents |
|---|---|---|
| 1 | Anthony J. Duthie | 7 |
| 2 | Mark Cullen | 2 |
| 3 | Michael Sandford | 2 |
| #4 | Clive Frederick OFFLEY | 1 |
| #5 | Thomas Johnston | 1 |