Top Inventors at Hartzell Propeller All Time
| Rank | Name | Patents |
|---|---|---|
| 1 | Donald C. Stackhouse | 3 |
| 2 | Dennis S. Zimpfer | 2 |
| 3 | Earl W. Jones | 2 |
| #4 | Loy D. Pace | 2 |
| #5 | W. Benjamin Harlamert | 2 |
| #6 | David F. Thompson | 1 |
| #7 | David E. Ziegler | 1 |
| #8 | Richard D. Bowerman | 1 |
| #9 | Richard L. Edinger | 1 |
| #10 | Richard V. Grimes | 1 |
| #11 | Mark W. Spoltman | 1 |
| #12 | Arthur J. Bowser | 1 |