Showing 1–3 of 3 inventors
| Rank | Inventor | Primary Company | Patents |
|---|---|---|---|
| 1 | Alfred P. Dufour | US EPA | 1 |
| 1 | John A. Helmsderfer | Unknown | 1 |
| 1 | Katherine P. Mitchell | Battelle Memorial Institute | 1 |
Part of Ohio
3 patents · 3 inventors · 0.2/1k pop.
Ranked #12,279 of 30,730 cities Top 40%
Showing 1–3 of 3 inventors
| Rank | Inventor | Primary Company | Patents |
|---|---|---|---|
| 1 | Alfred P. Dufour | US EPA | 1 |
| 1 | John A. Helmsderfer | Unknown | 1 |
| 1 | Katherine P. Mitchell | Battelle Memorial Institute | 1 |
Part of Ohio