Showing 1–11 of 11 inventors
| Rank | Inventor | Primary Company | Patents |
|---|---|---|---|
| 1 | Leroy B. Ronk | Ronk Electrical Industries | 5 |
| 2 | Ralph D. Peifer | — | 4 |
| 2 | Claude M. Hertz | Ronk Electrical Industries | 4 |
| 2 | Clement F. Marley | Unknown | 4 |
| #5 | John Swarbrick | — | 1 |
| #5 | Andrew A. Strazar | — | 1 |
| #5 | Carl H. Niemi | — | 1 |
| #5 | Daryl B. Keiser | — | 1 |
| #5 | Frances L. Schmitz | — | 1 |
| #5 | Lawrence T. Compton | — | 1 |
| #5 | Kyle A. Strazar | Emerson Electric | 1 |
Part of Illinois