Showing 1–4 of 4 inventors
| Rank | Inventor | Primary Company | Patents |
|---|---|---|---|
| 1 | Robert F. Ryan | Harsco | 2 |
| 2 | Robert K. Schulz | Rosemount | 1 |
| 2 | Lawrence J. Ryan | — | 1 |
| 2 | Warren T. Smith | ICI | 1 |
Part of Minnesota
5 patents · 4 inventors
Ranked #6,342 of 22,654 cities Top 30%
Showing 1–4 of 4 inventors
| Rank | Inventor | Primary Company | Patents |
|---|---|---|---|
| 1 | Robert F. Ryan | Harsco | 2 |
| 2 | Robert K. Schulz | Rosemount | 1 |
| 2 | Lawrence J. Ryan | — | 1 |
| 2 | Warren T. Smith | ICI | 1 |
Part of Minnesota