Showing 1–2 of 2 inventors
| Rank | Inventor | Primary Company | Patents |
|---|---|---|---|
| 1 | Helen Charlotte Douglas | — | 3 |
| 2 | Allan R. Cramm | — | 2 |
5 patents · 2 inventors
Ranked #68,584 of 111,555 cities Top 65%
Showing 1–2 of 2 inventors
| Rank | Inventor | Primary Company | Patents |
|---|---|---|---|
| 1 | Helen Charlotte Douglas | — | 3 |
| 2 | Allan R. Cramm | — | 2 |