Showing 1–8 of 8 inventors
| Rank | Inventor | Primary Company | Patents |
|---|---|---|---|
| 1 | Ray L. Ferris | The Pullman | 5 |
| 2 | Charles A. Barbour, Jr. | Auto I.D. | 2 |
| 2 | Robert Fee | Federal Express | 2 |
| #4 | George S. Ulatowski | J. L. Prescott | 1 |
| #4 | Mark Stangarone | — | 1 |
| #4 | Frank A. Glomb | — | 1 |
| #4 | Mary A. Puglise | — | 1 |
| #4 | Margaret E. Voss | — | 1 |
Part of Illinois