Showing 1–2 of 2 inventors
| Rank | Inventor | Primary Company | Patents |
|---|---|---|---|
| 1 | Steven A. Johnson | Donaldson Company | 66 |
| 2 | John Joseph Sopkowiak | Marvin Lumber And Cedar Company | 2 |
Part of Minnesota
68 patents · 2 inventors · 433.1/1k pop.
Ranked #20,372 of 111,555 cities Top 20%
Showing 1–2 of 2 inventors
| Rank | Inventor | Primary Company | Patents |
|---|---|---|---|
| 1 | Steven A. Johnson | Donaldson Company | 66 |
| 2 | John Joseph Sopkowiak | Marvin Lumber And Cedar Company | 2 |
Part of Minnesota