Top Inventors at Howell Instruments All Time
| Rank | Name | Patents |
|---|---|---|
| 1 | James L. Pettigrew | 2 |
| 2 | John S. Howell | 2 |
| 3 | John W. Wright | 2 |
| #4 | Gary D. Guenther | 1 |
| #5 | James Robinson | 1 |
| #6 | Mitchell T. Boeshart | 1 |
| #7 | Robert L. Hartung | 1 |
| #8 | Kenneth P. Widner | 1 |
| #9 | James W. Hoodenpyle | 1 |
| #10 | William L. Maserang | 1 |