Pennsylvania ranks #9 among US states for total patents filed in 2021, with 13,735 patents from 7,685 inventors across 696 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 Pennsylvania 2021
| Rank | City | Patents | Inventors |
|---|---|---|---|
| #1 | Pittsburgh, PA | 1,625 | 1,013 |
| #2 | Philadelphia, PA | 1,133 | 613 |
| #3 | West Chester, PA | 269 | 172 |
| #4 | State College, PA | 265 | 148 |
| #5 | Fairless Hills, PA | 219 | 2 |
| #6 | Allentown, PA | 206 | 104 |
| #7 | Bethlehem, PA | 195 | 113 |
| #8 | Newtown, PA | 194 | 61 |
| #9 | Yardley, PA | 187 | 83 |
| #10 | Downingtown, PA | 178 | 82 |
| #11 | Doylestown, PA | 168 | 106 |
| #12 | Malvern, PA | 167 | 87 |
| #13 | Wayne, PA | 166 | 88 |
| #14 | Lansdale, PA | 163 | 97 |
| #15 | Phoenixville, PA | 159 | 70 |
| #16 | Collegeville, PA | 158 | 100 |
| #17 | Erie, PA | 150 | 84 |
| #18 | Wexford, PA | 145 | 68 |
| #19 | Easton, PA | 142 | 64 |
| #20 | York, PA | 141 | 82 |
| #21 | Emmaus, PA | 124 | 43 |
| #22 | Lancaster, PA | 120 | 74 |
| #23 | King of Prussia, PA | 112 | 70 |
| #24 | North Wales, PA | 100 | 55 |
| #25 | Media, PA | 99 | 58 |