Top Inventors at Del Industries All Time
| Rank | Name | Patents |
|---|---|---|
| 1 | Frank G. Martin | 8 |
| 2 | Dennis Lavelle | 5 |
| 3 | Allen D. Clawson | 4 |
| #4 | David Sands | 2 |
| #5 | Elizabeth C. Hamil | 1 |
| #6 | Ezra Phillips | 1 |
| #7 | Fredrick Salter | 1 |
| #8 | Henry Schmitz | 1 |
| #9 | Joseph A. Cannavino | 1 |
| Rank | Name | Patents |
|---|---|---|
| 1 | Frank G. Martin | 8 |
| 2 | Dennis Lavelle | 5 |
| 3 | Allen D. Clawson | 4 |
| #4 | David Sands | 2 |
| #5 | Elizabeth C. Hamil | 1 |
| #6 | Ezra Phillips | 1 |
| #7 | Fredrick Salter | 1 |
| #8 | Henry Schmitz | 1 |
| #9 | Joseph A. Cannavino | 1 |