Hartford, SD ranks #20,190 worldwide for total patents filed all time, with 65 patents from 20 inventors. Leading employers of inventors based in Hartford, SD include Amesbury Group, Sioux Steel, Climate. That works out to 19.4 patents per 1,000 residents, a common benchmark for comparing regional innovation intensity.
Showing 1–20 of 20 inventors
| Rank ↑ | Inventor ↕ | Primary Company ↕ | Patents ↕ |
|---|---|---|---|
| 1 | Dan Raap | Amesbury Group | 12 |
| 1 | Leroy B. Stumpe | Sioux Steel | 12 |
| 3 | David P. Groeneveld | Climate | 11 |
| #4 | Barbara R. Haberer | Alumend | 6 |
| #5 | Dale Nelson | — | 3 |
| #5 | Thomas Walter Spisak | Terex Usa | 3 |
| #7 | Camille Kelly Nelson | Poet Research | 2 |
| #7 | Timothy Graham | Sencore | 2 |
| #7 | Harlan D. Anderson | — | 2 |
| #7 | James Straatmeyer | — | 2 |
| #11 | Stephen Nathaniel Bostrom | Daktronics | 1 |
| #11 | Jimmie L. Muir | Citibank, N.A. | 1 |
| #11 | Orlando S. Hofer | — | 1 |
| #11 | Gerald E. Cressman | — | 1 |
| #11 | Camille K. Crouch | Poet Research | 1 |
| #11 | Brandon Redenius | — | 1 |
| #11 | Cyrus Albright | — | 1 |
| #11 | Patrick James Barnick | — | 1 |
| #11 | Darrell G. Graham | — | 1 |
| #11 | Jim L. Muir | Citicorp Credit Services, Inc. (Usa) | 1 |
Part of South Dakota