Showing 1–3 of 3 inventors
| Rank | Inventor | Primary Company | Patents |
|---|---|---|---|
| 1 | John S. Sohre | — | 1 |
| 1 | John S. Pilch | — | 1 |
| 1 | John D. O'Brien | Unknown | 1 |
Part of Massachusetts
3 patents · 3 inventors · 0.5/1k pop.
Ranked #5,499 of 15,417 cities Top 40%
Showing 1–3 of 3 inventors
| Rank | Inventor | Primary Company | Patents |
|---|---|---|---|
| 1 | John S. Sohre | — | 1 |
| 1 | John S. Pilch | — | 1 |
| 1 | John D. O'Brien | Unknown | 1 |
Part of Massachusetts