Showing 1–6 of 6 inventors
| Rank | Inventor | Primary Company | Patents |
|---|---|---|---|
| 1 | Harold L. Reinsma | Caterpillar | 3 |
| 2 | Cecil R. Smith, Jr. | USDA | 2 |
| 2 | Weldon L. Phelps | Caterpillar | 2 |
| #4 | Edward R. Horton | Caterpillar | 1 |
| #4 | Richard W. Richardson | Ohio State University | 1 |
| #4 | Paul J. Staebler | Caterpillar | 1 |
Part of Illinois