Showing 1–2 of 2 inventors
| Rank | Inventor | Primary Company | Patents |
|---|---|---|---|
| 1 | John Grant | Ion Geophysical | 16 |
| 2 | Robert James Petrie | Crown, Cork & Seal Company | 3 |
Part of Illinois
19 patents · 2 inventors
Ranked #39,935 of 111,555 cities Top 40%
Showing 1–2 of 2 inventors
| Rank | Inventor | Primary Company | Patents |
|---|---|---|---|
| 1 | John Grant | Ion Geophysical | 16 |
| 2 | Robert James Petrie | Crown, Cork & Seal Company | 3 |
Part of Illinois