Showing 1–5 of 5 inventors
| Rank | Inventor | Primary Company | Patents |
|---|---|---|---|
| 1 | Daniel J. Zyck | Wm. Wrigley Jr. | 7 |
| 2 | Roy T. Swanson | S&C Electric | 1 |
| 2 | Ivan Svestka | Philips | 1 |
| 2 | Pierre Dobrovolny | Zenith Electronics | 1 |
| 2 | Richard M. Olson | 3M | 1 |
Part of Illinois
11 patents · 5 inventors · 1.6/1k pop.
Ranked #5,615 of 30,730 cities Top 20%
Showing 1–5 of 5 inventors
| Rank | Inventor | Primary Company | Patents |
|---|---|---|---|
| 1 | Daniel J. Zyck | Wm. Wrigley Jr. | 7 |
| 2 | Roy T. Swanson | S&C Electric | 1 |
| 2 | Ivan Svestka | Philips | 1 |
| 2 | Pierre Dobrovolny | Zenith Electronics | 1 |
| 2 | Richard M. Olson | 3M | 1 |
Part of Illinois