Showing 1–13 of 13 inventors
| Rank | Inventor | Primary Company | Patents |
|---|---|---|---|
| 1 | David J. Englund | Nu-Iron Technology, Llc. | 10 |
| 2 | Robert D. Barwise | USDA | 6 |
| 3 | Steven L. Ugrich | Southeast Directional Drilling | 3 |
| 3 | Bruce Trebnick | Potlach | 3 |
| #5 | Kevin Anthony Ellis | Rockwell Automation | 2 |
| #6 | Thomas J. Viren | — | 1 |
| #6 | Kimberly Neumann | — | 1 |
| #6 | George H. Demars, Jr. | — | 1 |
| #6 | Edward J. Shaughnessy | — | 1 |
| #6 | Kenneth W. Alto | — | 1 |
| #6 | Ralph J. Trebnick | — | 1 |
| #6 | Dennis Beckwith | — | 1 |
| #6 | Edwin O. Korkia | — | 1 |
Part of Minnesota