Showing 1–3 of 3 inventors
| Rank | Inventor | Primary Company | Patents |
|---|---|---|---|
| 1 | Andrew O. Marrack | Caterpillar | 4 |
| 2 | James D. McPhail | Caterpillar | 2 |
| 3 | LeRoy G. Hagenbuch | Philippi-Hagenbuch | 1 |
Part of Illinois
7 patents · 3 inventors · 1.2/1k pop.
Ranked #11,021 of 43,797 cities Top 30%
Showing 1–3 of 3 inventors
| Rank | Inventor | Primary Company | Patents |
|---|---|---|---|
| 1 | Andrew O. Marrack | Caterpillar | 4 |
| 2 | James D. McPhail | Caterpillar | 2 |
| 3 | LeRoy G. Hagenbuch | Philippi-Hagenbuch | 1 |
Part of Illinois