Connecticut ranks #20 among US states for total patents filed in 2024, with 7,086 patents from 3,623 inventors across 217 cities. On a per-capita basis that is 2.0 patents per 1,000 residents, a standard benchmark for comparing state-level R&D intensity.
Top Cities in Connecticut 2024
| Rank | City | Patents | Inventors |
|---|---|---|---|
| #1 | Town of West Hartford, CT | 312 | 141 |
| #2 | Stamford, CT | 306 | 171 |
| #3 | New Haven, CT | 302 | 167 |
| #4 | Glastonbury, CT | 280 | 106 |
| #5 | Guilford, CT | 162 | 62 |
| #6 | Madison, CT | 141 | 60 |
| #7 | Norwalk, CT | 130 | 47 |
| #8 | Westport, CT | 125 | 60 |
| #9 | South Windsor, CT | 123 | 60 |
| #10 | Cheshire, CT | 123 | 55 |
| #11 | Fairfield, CT | 119 | 58 |
| #12 | Hamden, CT | 111 | 55 |
| #13 | Manchester, CT | 107 | 59 |
| #14 | Farmington, CT | 103 | 66 |
| #15 | Avon, CT | 101 | 49 |
| #16 | Middletown, CT | 100 | 46 |
| #17 | Danbury, CT | 100 | 66 |
| #18 | Vernon, CT | 99 | 49 |
| #19 | Milford, CT | 97 | 51 |
| #20 | Windsor, CT | 96 | 40 |
| #21 | Ridgefield, CT | 95 | 57 |
| #22 | Brookfield, CT | 86 | 43 |
| #23 | Wethersfield, CT | 81 | 37 |
| #24 | Shelton, CT | 80 | 44 |
| #25 | Trumbull, CT | 79 | 43 |