Showing 1–7 of 7 inventors
| Rank | Inventor | Primary Company | Patents |
|---|---|---|---|
| 1 | David W. Cripe | Rockwell Collins | 5 |
| 2 | DOUGLAS W. KARKOW | Clearsign Combustion | 3 |
| 3 | David Merrill | Duraflame | 2 |
| #4 | Brad A. Walker | Rockwell Collins | 1 |
| #4 | Bradley A. Walker | Rockwell Collins | 1 |
| #4 | Orena Dee Young | John Deere | 1 |
| #4 | Kenneth W. McElreath | Rockwell Collins | 1 |
Part of Iowa