Showing 1–4 of 4 inventors
| Rank | Inventor | Primary Company | Patents |
|---|---|---|---|
| 1 | Terry Lynn Swearingen | Martin Engineering | 4 |
| 2 | Jeffrey R. Hochstatter | John Deere | 3 |
| 3 | Thomas H. Blanford | Ingersoll-Rand Architectural Hardware Limited | 1 |
| 3 | Ryan Van Dusen | 360 Yield Center | 1 |
Part of Illinois