Showing 1–3 of 3 inventors
| Rank | Inventor | Primary Company | Patents |
|---|---|---|---|
| 1 | Karl Lutz | Caterpillar | 4 |
| 2 | Gerald VonQualen | — | 3 |
| 3 | Harold B. Parkinson | — | 2 |
Part of Illinois
9 patents · 3 inventors · 6.6/1k pop.
Ranked #55,498 of 111,555 cities Top 50%
Showing 1–3 of 3 inventors
| Rank | Inventor | Primary Company | Patents |
|---|---|---|---|
| 1 | Karl Lutz | Caterpillar | 4 |
| 2 | Gerald VonQualen | — | 3 |
| 3 | Harold B. Parkinson | — | 2 |
Part of Illinois