Top Inventors at Henry Filters All Time
| Rank | Name | Patents |
|---|---|---|
| 1 | Stephen N. McEwen | 24 |
| 2 | Scott M. McEwen | 10 |
| 3 | John L. Creps | 9 |
| #4 | Eugene H. Harms | 6 |
| #5 | Richard A. Hallett | 6 |
| #6 | Robert F. Benschoter | 6 |
| #7 | Barry Benschoter | 4 |
| #8 | Michael R. Bailey | 4 |
| #9 | Jay M. Creps | 3 |
| #10 | Ted W. Guelde | 3 |
| #11 | Anthony J. Palumbo | 3 |
| #12 | Robert J. Fox | 2 |
| #13 | Robert L. Stevens | 2 |
| #14 | Barry L. Nehls | 1 |
| #15 | James S. Thomas | 1 |
| #16 | Matthew Olen Kelley | 1 |
| #17 | Mark A. Smith | 1 |
| #18 | Michael Harms | 1 |
| #19 | Richard A. Hallet | 1 |
| #20 | Clayton E. Tenniswood | 1 |
| #21 | Timothy J. Hainen | 1 |