Showing 1–4 of 4 inventors
| Rank | Inventor | Primary Company | Patents |
|---|---|---|---|
| 1 | Gerard A. Dutra | — | 1 |
| 1 | Robert M. Williams | Williams Patent Crusher And Pulverizer | 1 |
| 1 | A. Maynard Engebretson | Central Institute For The Deaf | 1 |
| 1 | Ronald I. Pass | Jdi Group | 1 |
Part of Missouri