Showing 1–21 of 21 inventors
| Rank | Inventor | Primary Company | Patents |
|---|---|---|---|
| 1 | Truman J. Stegmaier | Sioux Chief Mfg. Co. | 12 |
| 2 | David Baird | Dowco | 8 |
| 3 | Jack S. Hargus | Dayco Products | 6 |
| #4 | Andrew Barrett | Nordock | 5 |
| #4 | Michael Barrett | Hollingsworth (U.K.) | 5 |
| #4 | Harry J. Ledgerwood | The Plessey Company Limited | 5 |
| #7 | Ralph T. Clark | — | 2 |
| #7 | Chance Davis | Dowco | 2 |
| #9 | Braxton Teague | — | 1 |
| #9 | Sam Bryan Williams | — | 1 |
| #9 | Kristina BROWN | — | 1 |
| #9 | Jesse J. Buxton | — | 1 |
| #9 | Thomas Espy | Birko | 1 |
| #9 | Bruce Alan Clair | — | 1 |
| #9 | Tim O. Kepley | Positronic Industries | 1 |
| #9 | Woodrow Jackson | — | 1 |
| #9 | Harry B. Moore | — | 1 |
| #9 | Freeman D. Maroney | — | 1 |
| #9 | Elmer J. Poll | — | 1 |
| #9 | Timothy L. Dudley | American Products, L.L.C. | 1 |
| #9 | Alan L. Rost | American Products, L.L.C. | 1 |
Part of Missouri