Top Inventors at Hydro-Craft All Time
| Rank | Name | Patents |
|---|---|---|
| 1 | William R. Walker | 6 |
| 2 | David R. Shoptaw | 3 |
| 3 | Keith Wilson | 2 |
| #4 | Terence S. Tootell | 2 |
| #5 | George W. Lukowski | 1 |
| Rank | Name | Patents |
|---|---|---|
| 1 | William R. Walker | 6 |
| 2 | David R. Shoptaw | 3 |
| 3 | Keith Wilson | 2 |
| #4 | Terence S. Tootell | 2 |
| #5 | George W. Lukowski | 1 |