Showing 1–9 of 9 inventors
| Rank | Inventor | Primary Company | Patents |
|---|---|---|---|
| 1 | Franklin P. Adler | Illinois Railway Equipment | 2 |
| 2 | Fred Frey | — | 1 |
| 2 | Gerald D. Ringle | — | 1 |
| 2 | Dennis B. Henderlong | Tp Orthodontics | 1 |
| 2 | E. Lee Bowen | Tyler Refrigeration | 1 |
| 2 | Peter Heck | Trumpf Laser- Und Systemtechnik Gmbh | 1 |
| 2 | Lee M. Bowen | Tyler Refrigeration | 1 |
| 2 | Steven O. Buchanan | Dwyer Instruments | 1 |
| 2 | Howard W. Morgan, Jr. | Filter Specialists | 1 |
Part of Indiana