Du Quoin, IL ranks #79,433 worldwide for total patents filed all time, with 3 patents from 3 inventors. Leading employers of inventors based in Du Quoin, IL include Unknown. That works out to 0.5 patents per 1,000 residents, a common benchmark for comparing regional innovation intensity.
Showing 1–3 of 3 inventors
| Rank | Inventor | Primary Company | Patents |
|---|---|---|---|
| 1 | Vernon Siefert | — | 1 |
| 1 | Russell L. McMurray | — | 1 |
| 1 | Dale E. Swinney | Unknown | 1 |
Part of Illinois