Maryland ranks #22 among US states for total patents filed in 2021, with 6,455 patents from 3,967 inventors across 256 cities. On a per-capita basis that is 1.0 patents per 1,000 residents, a standard benchmark for comparing state-level R&D intensity.
Top Cities in Maryland 2021
| Rank | City | Patents | Inventors |
|---|---|---|---|
| #1 | Baltimore, MD | 994 | 583 |
| #2 | Rockville, MD | 468 | 275 |
| #3 | Bethesda, MD | 364 | 259 |
| #4 | Gaithersburg, MD | 320 | 221 |
| #5 | Silver Spring, MD | 259 | 186 |
| #6 | Germantown, MD | 242 | 131 |
| #7 | Ellicott City, MD | 225 | 145 |
| #8 | Columbia, MD | 219 | 139 |
| #9 | Potomac, MD | 218 | 115 |
| #10 | Frederick, MD | 199 | 108 |
| #11 | Chevy Chase Section Five, MD | 96 | 21 |
| #12 | Timonium, MD | 85 | 54 |
| #13 | College Park, MD | 81 | 51 |
| #14 | Cockeysville, MD | 80 | 45 |
| #15 | Bel Air, MD | 74 | 47 |
| #16 | Laurel, MD | 68 | 53 |
| #17 | Annapolis, MD | 58 | 51 |
| #18 | North Potomac, MD | 56 | 48 |
| #19 | Greenbelt, MD | 55 | 45 |
| #20 | Clarksburg, MD | 54 | 29 |
| #21 | East New Market, MD | 52 | 1 |
| #22 | Severna Park, MD | 52 | 26 |
| #23 | Olney, MD | 50 | 31 |
| #24 | Clarksville, MD | 49 | 38 |
| #25 | Reisterstown, MD | 47 | 30 |