Delaware ranks #41 among US states for total patents filed in 2019, with 975 patents from 593 inventors across 33 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 Delaware 2019
| Rank | City | Patents | Inventors |
|---|---|---|---|
| #1 | Wilmington, DE | 386 | 239 |
| #2 | Newark, DE | 173 | 126 |
| #3 | Hockessin, DE | 87 | 56 |
| #4 | Middletown, DE | 73 | 25 |
| #5 | Nonatum Mills, DE | 71 | 33 |
| #6 | Dover, DE | 39 | 24 |
| #7 | Bear, DE | 33 | 25 |
| #8 | Claymont, DE | 21 | 5 |
| #9 | New Castle, DE | 18 | 13 |
| #10 | Lewes, DE | 12 | 6 |
| #11 | Townsend, DE | 11 | 4 |
| #12 | Seaford, DE | 5 | 4 |
| #13 | Smyrna, DE | 5 | 4 |
| #14 | Georgetown, DE | 5 | 1 |
| #15 | Milton, DE | 4 | 2 |
| #16 | Millsboro, DE | 3 | 3 |
| #17 | Milford, DE | 3 | 3 |
| #18 | Arden, DE | 3 | 2 |
| #19 | Rehoboth Beach, DE | 3 | 2 |
| #20 | Bethany Beach, DE | 3 | 2 |
| #21 | Centreville, DE | 2 | 1 |
| #22 | Knowles Crossroads, DE | 2 | 1 |
| #23 | Marydel, DE | 2 | 1 |
| #24 | Newport, DE | 2 | 2 |
| #25 | Dartmouth Woods, DE | 1 | 1 |