Showing 1–25 of 25 inventors
| Rank | Inventor | Primary Company | Patents |
|---|---|---|---|
| 1 | Robert C. Berfield | Shop Vac | 147 |
| 2 | Daniel W. Lemke | Lonza | 11 |
| 3 | Brenda K. Miller | Sure Fit | 10 |
| 3 | Gary Meredith, Sr. | Kimball International | 10 |
| #5 | Robert Gephart | UPS | 4 |
| #6 | Cory F. Girton | Shop Vac | 3 |
| #7 | Donald L. Weaver | Alcan Aluminum | 2 |
| #7 | Frank E. Clark | General Cable Technologies | 2 |
| #7 | Thomas R. Boyd | — | 2 |
| #7 | Raymond Stanley Haines | — | 2 |
| #7 | Charles L. Garman | Brodart | 2 |
| #7 | William R. Camerer, III | — | 2 |
| #13 | Edward Almasy | — | 1 |
| #13 | Lloyd M. Hopkins | — | 1 |
| #13 | Gregory Bower | — | 1 |
| #13 | Charles Cannon, Jr. | — | 1 |
| #13 | Daniel Wade Greenaway | First Quality Hygienic | 1 |
| #13 | Ryan Robert Romberger | Truck-Lite Co. | 1 |
| #13 | Mary R. Corson | — | 1 |
| #13 | John E. Kimport | — | 1 |
| #13 | Michael A. Mantle | — | 1 |
| #13 | Kellie M. Mantle | — | 1 |
| #13 | Nathan G Welshans | Vanguard Group | 1 |
| #13 | James A. Breining, II | — | 1 |
| #13 | Jane M. Hopkins | — | 1 |
Part of Pennsylvania