Showing 1–4 of 4 inventors
| Rank | Inventor | Primary Company | Patents |
|---|---|---|---|
| 1 | Winston S. Marshall | Eli Lilly | 2 |
| 2 | Donald G. Cox | Air Equipment & Engineering | 1 |
| 2 | Ronald G. Darner | Graber Industries | 1 |
| 2 | Walter A. Grannen, III | E. W. Mold & Tool Company | 1 |
Part of Indiana