Showing 1–7 of 7 inventors
| Rank | Inventor | Primary Company | Patents |
|---|---|---|---|
| 1 | William W. Billings | Westinghouse Electric | 11 |
| 2 | Charles J. Prange | Sewer Rodding Equipment | 10 |
| 3 | Gerald A. Coon | Findlay Industries | 4 |
| #4 | Gregory Francis Bonifas | Metokote | 1 |
| #4 | Les Kohli | Thetford | 1 |
| #4 | Martin L. Ruble | — | 1 |
| #4 | Adam Park | — | 1 |
Part of Ohio