Constantine, MI ranks #22,246 worldwide for total patents filed all time, with 55 patents from 13 inventors. Leading employers of inventors based in Constantine, MI include Shopsmith, Stryker, Morryde International. That works out to 28.2 patents per 1,000 residents, a common benchmark for comparing regional innovation intensity.
Showing 1–13 of 13 inventors
| Rank | Inventor | Primary Company | Patents |
|---|---|---|---|
| 1 | Steven A. Snyder | Shopsmith | 12 |
| 2 | Richard L. McDaniel | Stryker | 11 |
| 3 | Anthony J. Granzotto | Morryde International | 7 |
| #4 | Zahid Ayub | Delaware Capital Formation | 6 |
| #5 | Wayne D. Carter | Shield Restraint Systems | 5 |
| #6 | Kermit Parsons | — | 3 |
| #6 | Robert F. Oldenburg | Cts | 3 |
| #8 | Kent W Reese | — | 2 |
| #8 | Nancy L. Bycroft | Haarmann & Reimer | 2 |
| #10 | Terry L. Ware | — | 1 |
| #10 | Rick McDaniel | Stryker | 1 |
| #10 | Michael R. Featherstone | Cascade Engineering | 1 |
| #10 | Shelby W. Nickell | — | 1 |
Part of Michigan