Showing 1–3 of 3 inventors
| Rank | Inventor | Primary Company | Patents |
|---|---|---|---|
| 1 | Margaret L. Grapperhaus | Pharmacia | 4 |
| 2 | George H. Hertz | — | 1 |
| 2 | Stephen W. Meyer | Olin | 1 |
Part of Illinois
6 patents · 3 inventors · 0.6/1k pop.
Ranked #8,302 of 30,730 cities Top 30%
Showing 1–3 of 3 inventors
| Rank | Inventor | Primary Company | Patents |
|---|---|---|---|
| 1 | Margaret L. Grapperhaus | Pharmacia | 4 |
| 2 | George H. Hertz | — | 1 |
| 2 | Stephen W. Meyer | Olin | 1 |
Part of Illinois