Showing 1–14 of 14 inventors
| Rank | Inventor | Primary Company | Patents |
|---|---|---|---|
| 1 | Philip Carl Spengler | Caterpillar | 5 |
| 2 | Ian Radtke | Precision Planting | 4 |
| 3 | Mircea Dumitru | Caterpillar | 2 |
| 3 | Adam Nackers | Caterpillar | 2 |
| 3 | Terril Johnson | Caterpillar | 2 |
| 3 | Eric James Johannsen | Caterpillar | 2 |
| #7 | Timothy L. Hand | Caterpillar | 1 |
| #7 | DeForest C. Gould, III | Caterpillar | 1 |
| #7 | Joel H. Miller | Bose | 1 |
| #7 | Philip Wallstedt | Caterpillar | 1 |
| #7 | Stephen C. Nofsinger | Caterpillar | 1 |
| #7 | Skylar Clement | Natural Fiber Welding | 1 |
| #7 | Kraig M. Love | Caterpillar | 1 |
| #7 | Brent Tisserat | USDA | 1 |
Part of Illinois