Showing 1–5 of 5 inventors
| Rank | Inventor | Primary Company | Patents |
|---|---|---|---|
| 1 | John C. Tangen | 3M | 2 |
| 1 | Lonnie D. Armstrong | — | 2 |
| 3 | Merwin Anderson | Illinois Tool Works | 1 |
| 3 | John Kirckof | Illinois Tool Works | 1 |
| 3 | Roland D. Noordmans | — | 1 |
Part of Minnesota
7 patents · 5 inventors · 2.7/1k pop.
Ranked #7,355 of 30,370 cities Top 25%
Showing 1–5 of 5 inventors
| Rank | Inventor | Primary Company | Patents |
|---|---|---|---|
| 1 | John C. Tangen | 3M | 2 |
| 1 | Lonnie D. Armstrong | — | 2 |
| 3 | Merwin Anderson | Illinois Tool Works | 1 |
| 3 | John Kirckof | Illinois Tool Works | 1 |
| 3 | Roland D. Noordmans | — | 1 |
Part of Minnesota