Showing 1–4 of 4 inventors
| Rank | Inventor | Primary Company | Patents |
|---|---|---|---|
| 1 | Richard E. Johnson | American National Can | 2 |
| 1 | Richard F. Unger | Thermo King | 2 |
| 3 | G. James Oletzke | — | 1 |
| 3 | Herman A. Preus | — | 1 |
Part of Minnesota
6 patents · 4 inventors · 1.3/1k pop.
Ranked #5,164 of 20,767 cities Top 25%
Showing 1–4 of 4 inventors
| Rank | Inventor | Primary Company | Patents |
|---|---|---|---|
| 1 | Richard E. Johnson | American National Can | 2 |
| 1 | Richard F. Unger | Thermo King | 2 |
| 3 | G. James Oletzke | — | 1 |
| 3 | Herman A. Preus | — | 1 |
Part of Minnesota