Showing 1–3 of 3 inventors
| Rank | Inventor | Primary Company | Patents |
|---|---|---|---|
| 1 | Grant Edward Maasjo | Douglas Scientific | 2 |
| 2 | Ann Marie Butler | — | 1 |
| 2 | Burl A. Massman | — | 1 |
Part of Minnesota
4 patents · 3 inventors · 17.8/1k pop.
Ranked #73,472 of 111,555 cities Top 70%
Showing 1–3 of 3 inventors
| Rank | Inventor | Primary Company | Patents |
|---|---|---|---|
| 1 | Grant Edward Maasjo | Douglas Scientific | 2 |
| 2 | Ann Marie Butler | — | 1 |
| 2 | Burl A. Massman | — | 1 |
Part of Minnesota