New Hampshire ranks #28 among US states for total patents filed in 2021, with 3,031 patents from 1,586 inventors across 178 cities. On a per-capita basis that is 2.2 patents per 1,000 residents, a standard benchmark for comparing state-level R&D intensity.
Top Cities in New Hampshire 2021
| Rank | City | Patents | Inventors |
|---|---|---|---|
| #1 | Nashua, NH | 353 | 203 |
| #2 | Manchester, NH | 176 | 93 |
| #3 | Bedford, NH | 161 | 74 |
| #4 | Merrimack, NH | 146 | 64 |
| #5 | Windham, NH | 127 | 51 |
| #6 | Greenland, NH | 122 | 12 |
| #7 | Lebanon, NH | 108 | 64 |
| #8 | Hanover, NH | 96 | 54 |
| #9 | Hollis, NH | 95 | 51 |
| #10 | Portsmouth, NH | 89 | 48 |
| #11 | Hudson, NH | 82 | 34 |
| #12 | Salem, NH | 63 | 35 |
| #13 | Amherst, NH | 63 | 42 |
| #14 | Goffstown, NH | 61 | 15 |
| #15 | Pelham, NH | 54 | 31 |
| #16 | Derry, NH | 51 | 34 |
| #17 | Exeter, NH | 49 | 37 |
| #18 | Concord, NH | 48 | 22 |
| #19 | Litchfield, NH | 45 | 19 |
| #20 | Londonderry, NH | 45 | 27 |
| #21 | Stratham, NH | 43 | 21 |
| #22 | Bow, NH | 43 | 17 |
| #23 | Durham, NH | 37 | 16 |
| #24 | Milford, NH | 33 | 20 |
| #25 | Deerfield, NH | 26 | 13 |