Maine ranks #43 among US states for total patents filed in 2021, with 794 patents from 429 inventors across 119 cities. On a per-capita basis that is 0.6 patents per 1,000 residents, a standard benchmark for comparing state-level R&D intensity.
Top Cities in Maine 2021
| Rank | City | Patents | Inventors |
|---|---|---|---|
| #1 | Fryeburg, ME | 193 | 96 |
| #2 | Portland, ME | 49 | 34 |
| #3 | Wells, ME | 34 | 3 |
| #4 | Saco, ME | 25 | 11 |
| #5 | Kennebunk, ME | 21 | 7 |
| #6 | Scarborough, ME | 17 | 13 |
| #7 | Boothbay Harbor, ME | 17 | 1 |
| #8 | Yarmouth, ME | 16 | 12 |
| #9 | Sanford, ME | 15 | 7 |
| #10 | Eliot, ME | 14 | 7 |
| #11 | Rockport, ME | 14 | 3 |
| #12 | Cape Elizabeth, ME | 14 | 9 |
| #13 | Falmouth, ME | 13 | 7 |
| #14 | South Portland, ME | 13 | 11 |
| #15 | Oxford, ME | 13 | 2 |
| #16 | Kennebunkport, ME | 12 | 1 |
| #17 | York, ME | 10 | 8 |
| #18 | Hartland, ME | 10 | 1 |
| #19 | Brunswick, ME | 9 | 8 |
| #20 | Waterboro, ME | 8 | 5 |
| #21 | Sullivan, ME | 8 | 1 |
| #22 | Frye Island, ME | 8 | 3 |
| #23 | Gray, ME | 8 | 7 |
| #24 | Biddeford, ME | 8 | 6 |
| #25 | Belfast, ME | 8 | 5 |