Delaware ranks #38 among US states for total patents filed in 2017, with 1,099 patents from 672 inventors across 31 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 2017
| Rank | City | Patents | Inventors |
|---|---|---|---|
| #1 | Wilmington, DE | 451 | 279 |
| #2 | Newark, DE | 194 | 146 |
| #3 | Hockessin, DE | 118 | 65 |
| #4 | Middletown, DE | 78 | 30 |
| #5 | Nonatum Mills, DE | 60 | 26 |
| #6 | Bear, DE | 58 | 38 |
| #7 | Dover, DE | 32 | 19 |
| #8 | New Castle, DE | 24 | 14 |
| #9 | Townsend, DE | 13 | 4 |
| #10 | Claymont, DE | 12 | 4 |
| #11 | Bethany Beach, DE | 7 | 5 |
| #12 | Clayton, DE | 6 | 4 |
| #13 | Milford, DE | 5 | 4 |
| #14 | Seaford, DE | 5 | 5 |
| #15 | Millsboro, DE | 4 | 4 |
| #16 | Smyrna, DE | 4 | 3 |
| #17 | Montchanin, DE | 3 | 1 |
| #18 | Lewes, DE | 3 | 2 |
| #19 | Milton, DE | 3 | 3 |
| #20 | Newport, DE | 3 | 2 |
| #21 | Frederica, DE | 3 | 3 |
| #22 | Yorklyn, DE | 2 | 1 |
| #23 | Georgetown, DE | 2 | 1 |
| #24 | Lincoln, DE | 2 | 2 |
| #25 | Holly Forest, DE | 1 | 1 |