Showing 1–21 of 21 inventors
| Rank | Inventor | Primary Company | Patents |
|---|---|---|---|
| 1 | Harry E. Knuppel | Kness Mfg. Co. | 9 |
| 2 | Wade M. Bassett | — | 6 |
| 2 | Lisa L. Bassett | — | 6 |
| #4 | Jim Rhodes | Jst Performance | 5 |
| #4 | Kevin Douglas | Tenable | 5 |
| #6 | Kathy J. Wauson | Kness Mfg. Co. | 4 |
| #6 | Nathan E. Herz | Musco | 4 |
| #8 | Andrew Mullen | Musco | 2 |
| #8 | Marvin E. Kness | Kness Mfg. Co. | 2 |
| #8 | James Kaldenberg | — | 2 |
| #8 | Mike Lawrence | — | 2 |
| #8 | Arnold A. Kness | Kness Mfg. Co. | 2 |
| #8 | Edward J. Yarkosky | Kness Mfg. Co. | 2 |
| #8 | Mark Bachman | Transportation Ip Holdings | 2 |
| #15 | William J. Winke | — | 1 |
| #15 | Tim Folkerts | — | 1 |
| #15 | David M. Crall | Cemen Tech | 1 |
| #15 | Daniel J. Little | Vermeer Manufacturing | 1 |
| #15 | Gary Raymond Dustin | John Deere | 1 |
| #15 | Steven L. Hoskins | John Deere | 1 |
| #15 | Michael D. Feehan | — | 1 |
Part of Iowa