Showing 1–3 of 3 inventors
| Rank | Inventor | Primary Company | Patents |
|---|---|---|---|
| 1 | Ellen O'Keefe | — | 1 |
| 1 | John P. Downing, Jr. | Battelle Memorial Institute | 1 |
| 1 | Earnest J. Callahan | — | 1 |
Part of Washington
3 patents · 3 inventors · 0.4/1k pop.
Ranked #7,847 of 20,767 cities Top 40%
Showing 1–3 of 3 inventors
| Rank | Inventor | Primary Company | Patents |
|---|---|---|---|
| 1 | Ellen O'Keefe | — | 1 |
| 1 | John P. Downing, Jr. | Battelle Memorial Institute | 1 |
| 1 | Earnest J. Callahan | — | 1 |
Part of Washington