Top Inventors at Preston Industries All Time
| Rank | Name | Patents |
|---|---|---|
| 1 | Charles Zimnicki | 1 |
| 2 | James A. Hedrington | 1 |
| 3 | John Atterberry | 1 |
| #4 | Philip Preston | 1 |
| #5 | Thomas P. Wallbaum | 1 |
| #6 | Troy W. Livingston | 1 |
| #7 | Walter Raczynski | 1 |
| #8 | Andrew Witt | 1 |
| Rank | Name | Patents |
|---|---|---|
| 1 | Charles Zimnicki | 1 |
| 2 | James A. Hedrington | 1 |
| 3 | John Atterberry | 1 |
| #4 | Philip Preston | 1 |
| #5 | Thomas P. Wallbaum | 1 |
| #6 | Troy W. Livingston | 1 |
| #7 | Walter Raczynski | 1 |
| #8 | Andrew Witt | 1 |