Showing 1–25 of 25 inventors
| Rank | Inventor | Primary Company | Patents |
|---|---|---|---|
| 1 | Robert F. Crane | Earth Tool Company | 68 |
| 2 | Roger D. Lewis | — | 5 |
| 3 | Gregory C. Kohls | Federal Signal | 4 |
| #4 | Alan W. Kotchy | — | 3 |
| #4 | Austin Brian Nelson | Enel X S.R.L. | 3 |
| #6 | Lucien L. Mason | Consolidated Papers | 2 |
| #6 | Roger D. Ewert | — | 2 |
| #6 | Gary Jungwirth | — | 2 |
| #9 | Jeffrey R. Bentz | — | 1 |
| #9 | Benjamin A. Best | — | 1 |
| #9 | Derek Alexander | Harley-Davidson Motor Company | 1 |
| #9 | Christopher C. Vande Zande | — | 1 |
| #9 | Melvin Konietzki | — | 1 |
| #9 | Cheryl A. Hale | — | 1 |
| #9 | Marvin A. DeWitt | — | 1 |
| #9 | Albert G. Burhite | — | 1 |
| #9 | Daniel E. Goodness | — | 1 |
| #9 | Ramona M. Winters | — | 1 |
| #9 | Dorothy F. Hyde | — | 1 |
| #9 | Trent T. Rasmussen | — | 1 |
| #9 | Therman R. Billman | — | 1 |
| #9 | Leon J. Hunter, III | Nicolet Instrument | 1 |
| #9 | Patrick Y. Wingo | — | 1 |
| #9 | Timothy Heeg | — | 1 |
| #9 | Dawn Marie Robinson | — | 1 |
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