Showing 1–5 of 5 inventors
| Rank | Inventor | Primary Company | Patents |
|---|---|---|---|
| 1 | Jerry L. Shilling | Wabash Valley Manufacturing | 7 |
| 2 | Donald E. DeWitt | Steiner Enterprises | 2 |
| 3 | Robert A. Vandal | Guardian Industries | 1 |
| 3 | Ray H. Grumme | — | 1 |
| 3 | Jack D. Jennings | Zimmer | 1 |
Part of Indiana