Top Inventors at Frederick Manufacturing All Time
| Rank | Name | Patents |
|---|---|---|
| 1 | John H. Francis | 5 |
| 2 | Roy E. VanDerLinden | 2 |
| 3 | N. Kevin Mannon | 1 |
| #4 | Paul T. Voss | 1 |
| #5 | Roy E. Van Derlinden | 1 |
| Rank | Name | Patents |
|---|---|---|
| 1 | John H. Francis | 5 |
| 2 | Roy E. VanDerLinden | 2 |
| 3 | N. Kevin Mannon | 1 |
| #4 | Paul T. Voss | 1 |
| #5 | Roy E. Van Derlinden | 1 |