Showing 1–1 of 1 inventors
| Rank | Inventor | Primary Company | Patents |
|---|---|---|---|
| 1 | Robert van Helden | Shell Oil Compny | 6 |
Part of Wisconsin
6 patents · 1 inventors
Ranked #64,531 of 111,555 cities Top 60%
Showing 1–1 of 1 inventors
| Rank | Inventor | Primary Company | Patents |
|---|---|---|---|
| 1 | Robert van Helden | Shell Oil Compny | 6 |
Part of Wisconsin