Showing 1–1 of 1 inventors
| Rank | Inventor | Primary Company | Patents |
|---|---|---|---|
| 1 | Helen T. Ryan | Afton Chemical | 15 |
15 patents · 1 inventors
Ranked #44,592 of 111,555 cities Top 40%
Showing 1–1 of 1 inventors
| Rank | Inventor | Primary Company | Patents |
|---|---|---|---|
| 1 | Helen T. Ryan | Afton Chemical | 15 |