Delaware ranks #38 among US states for total patents filed in 2023, with 1,055 patents from 650 inventors across 34 cities. On a per-capita basis that is 1.1 patents per 1,000 residents, a standard benchmark for comparing state-level R&D intensity.
Top Cities in Delaware 2023
| Rank | City | Patents | Inventors |
|---|---|---|---|
| #1 | Wilmington, DE | 439 | 268 |
| #2 | Nonatum Mills, DE | 157 | 83 |
| #3 | Hockessin, DE | 103 | 54 |
| #4 | Newark, DE | 99 | 78 |
| #5 | Bear, DE | 48 | 33 |
| #6 | Dover, DE | 43 | 29 |
| #7 | Claymont, DE | 41 | 17 |
| #8 | Middletown, DE | 40 | 29 |
| #9 | New Castle, DE | 19 | 16 |
| #10 | Georgetown, DE | 12 | 2 |
| #11 | Lewes, DE | 11 | 6 |
| #12 | Townsend, DE | 5 | 3 |
| #13 | Harrington, DE | 4 | 3 |
| #14 | Centreville, DE | 3 | 1 |
| #15 | Milford, DE | 3 | 3 |
| #16 | Newport, DE | 3 | 3 |
| #17 | Bethany Beach, DE | 3 | 3 |
| #18 | Nanticoke Farms, DE | 2 | 2 |
| #19 | Sharpley, DE | 2 | 1 |
| #20 | Marydel, DE | 2 | 1 |
| #21 | Knowles Crossroads, DE | 2 | 1 |
| #22 | Milton, DE | 2 | 2 |
| #23 | Hickory Ridge, DE | 1 | 1 |
| #24 | Hampton, DE | 1 | 1 |
| #25 | Garton Development, DE | 1 | 1 |