Showing 1–17 of 17 inventors
| Rank | Inventor | Primary Company | Patents |
|---|---|---|---|
| 1 | Dennis E. Roberts | Zebco Holdings | 3 |
| 2 | Anthony F. Cieszkiewicz | Caterpillar | 2 |
| 2 | David E. Nelson | Hydroacoustics | 2 |
| #4 | Edward E. Schmillen | Caterpillar | 1 |
| #4 | Michael F. Coffman | Caterpillar | 1 |
| #4 | James R. McGath | — | 1 |
| #4 | Gayland F. Spencer | USDA | 1 |
| #4 | Timothy A. Cross | Caterpillar | 1 |
| #4 | James L. Schmitt | Caterpillar | 1 |
| #4 | Timothy G. Mayer | Federal Signal | 1 |
| #4 | Douglas R. Ervin | Solar Turbines Incorporated | 1 |
| #4 | Brad L. Holsapple | Caterpillar | 1 |
| #4 | Travis E. Barnes | Caterpillar | 1 |
| #4 | Tana L. Utley | Caterpillar | 1 |
| #4 | Larry C. Clemens | Caterpillar | 1 |
| #4 | Nathan G. Rozenboom | Caterpillar | 1 |
| #4 | M. Kathryn Christensen | Caterpillar | 1 |
Part of Illinois