Showing 1–3 of 3 inventors
| Rank | Inventor | Primary Company | Patents |
|---|---|---|---|
| 1 | Keith W. Christiansen | Chicago Rawhide Manufacturing | 2 |
| 2 | Peter J. Nattrass | Bulk Lift International | 1 |
| 2 | Edward J. Cullinan | — | 1 |
Part of Illinois
4 patents · 3 inventors · 0.8/1k pop.
Ranked #4,506 of 15,417 cities Top 30%
Showing 1–3 of 3 inventors
| Rank | Inventor | Primary Company | Patents |
|---|---|---|---|
| 1 | Keith W. Christiansen | Chicago Rawhide Manufacturing | 2 |
| 2 | Peter J. Nattrass | Bulk Lift International | 1 |
| 2 | Edward J. Cullinan | — | 1 |
Part of Illinois