Top Inventors at Duval All Time
| Rank | Name | Patents |
|---|---|---|
| 1 | Leonard R. Ochs | 4 |
| 2 | Archibald W. Fletcher | 3 |
| 3 | Charles D. Hunt | 2 |
| #4 | Frank Lamb | 2 |
| #5 | Ralph Ruggiero | 2 |
| #6 | Wallace H. Long | 2 |
| #7 | Charles Burnett | 1 |
| #8 | David Naden | 1 |
| #9 | Douglas E. Cochran | 1 |
| #10 | George E. Atwood | 1 |
| #11 | Harald Weber | 1 |
| #12 | Melvin S. Cook | 1 |
| #13 | Phillip O. Tyree | 1 |
| #14 | Abraham Sadan | 1 |
| #15 | Alex Wilson | 1 |