Showing 1–3 of 3 inventors
| Rank | Inventor | Primary Company | Patents |
|---|---|---|---|
| 1 | Bernard M. Gruman | John Deere | 4 |
| 2 | Jacob M. Rosswurm | John Deere | 3 |
| 3 | David P Chappo | — | 1 |
Part of Iowa
8 patents · 3 inventors · 10.5/1k pop.
Ranked #58,130 of 111,555 cities Top 55%
Showing 1–3 of 3 inventors
| Rank | Inventor | Primary Company | Patents |
|---|---|---|---|
| 1 | Bernard M. Gruman | John Deere | 4 |
| 2 | Jacob M. Rosswurm | John Deere | 3 |
| 3 | David P Chappo | — | 1 |
Part of Iowa