Showing 1–3 of 3 inventors
| Rank | Inventor | Primary Company | Patents |
|---|---|---|---|
| 1 | Robert C. Weaver | Unknown | 2 |
| 2 | William R. Betz | Sigma-Aldrich Co. | 1 |
| 2 | Joseph Johnstonbaugh | Unknown | 1 |
Part of Pennsylvania
4 patents · 3 inventors · 6.3/1k pop.
Ranked #6,634 of 20,767 cities Top 35%
Showing 1–3 of 3 inventors
| Rank | Inventor | Primary Company | Patents |
|---|---|---|---|
| 1 | Robert C. Weaver | Unknown | 2 |
| 2 | William R. Betz | Sigma-Aldrich Co. | 1 |
| 2 | Joseph Johnstonbaugh | Unknown | 1 |
Part of Pennsylvania