Top Inventors at Hennessy Industries All Time
| Rank | Name | Patents |
|---|---|---|
| 1 | Charles L. Cunningham | 19 |
| 2 | John Story | 10 |
| 3 | David M. Carpenter | 7 |
| #4 | Ross Everhard | 7 |
| #5 | Charles G. Leeper | 6 |
| #6 | Ralph L. Jenkins | 6 |
| #7 | Robert E. Gwaltney | 6 |
| #8 | John F. Wood | 3 |
| #9 | Steven Davis | 3 |
| #10 | Brian W. LaBorde | 2 |
| #11 | Don Truex | 2 |
| #12 | Jim L. Holladay | 2 |
| #13 | Andrew Freeman | 2 |
| #14 | Carlo Buzzi | 1 |
| #15 | D. Randall Greer | 1 |
| #16 | David Randall Greer, Jr. | 1 |
| #17 | James D. Ford | 1 |
| #18 | James D. Howell | 1 |
| #19 | Jason Martin | 1 |
| #20 | Jimmie L. Holladay | 1 |
| #21 | Josh Sortor | 1 |
| #22 | Layton Lee | 1 |
| #23 | Marcus E. McAnally | 1 |
| #24 | Matt Weis | 1 |
| #25 | Melvin R. Willis | 1 |
| #26 | Robert B. Ashman | 1 |
| #27 | Ronald D. Hone | 1 |
| #28 | Robert Stuart | 1 |
| #29 | Todd J. Ford | 1 |
| #30 | Larry C. Tuck | 1 |
| #31 | Shane P. Duty | 1 |
| #32 | Anton Varshavchik | 1 |
| #33 | T. J. Buckley | 1 |