Top Inventors at Hartco All Time
| Rank | Name | Patents |
|---|---|---|
| 1 | Kenneth C. Pearson | 5 |
| 2 | Arthur Langas | 5 |
| 3 | Donald B. Ayres | 3 |
| #4 | Glenn Gustafson | 1 |
| #5 | Harrison Church Lingle | 1 |
| #6 | Thomas A. Frazier | 1 |
| #7 | Wayne Bechtoldt | 1 |
| Rank | Name | Patents |
|---|---|---|
| 1 | Kenneth C. Pearson | 5 |
| 2 | Arthur Langas | 5 |
| 3 | Donald B. Ayres | 3 |
| #4 | Glenn Gustafson | 1 |
| #5 | Harrison Church Lingle | 1 |
| #6 | Thomas A. Frazier | 1 |
| #7 | Wayne Bechtoldt | 1 |