Pennsylvania ranks #10 among US states for total patents filed all time, with 387,418 patents from 74,527 inventors across 1,484 cities. On a per-capita basis that is 29.8 patents per 1,000 residents, a standard benchmark for comparing state-level R&D intensity.
Top Cities in Pennsylvania All Time
| Rank | City | Patents | Inventors |
|---|---|---|---|
| #1 | Pittsburgh, PA | 37,313 | 7,570 |
| #2 | Philadelphia, PA | 20,714 | 4,834 |
| #3 | West Chester, PA | 7,810 | 1,305 |
| #4 | Allentown, PA | 6,783 | 1,150 |
| #5 | Bethlehem, PA | 6,313 | 1,038 |
| #6 | State College, PA | 5,608 | 1,195 |
| #7 | Yardley, PA | 5,444 | 643 |
| #8 | Lansdale, PA | 5,439 | 839 |
| #9 | Doylestown, PA | 5,373 | 956 |
| #10 | Erie, PA | 5,185 | 1,097 |
| #11 | York, PA | 4,549 | 933 |
| #12 | Lancaster, PA | 4,449 | 963 |
| #13 | Collegeville, PA | 4,118 | 630 |
| #14 | Newtown, PA | 4,034 | 507 |
| #15 | Harrisburg, PA | 4,016 | 635 |
| #16 | Easton, PA | 3,707 | 611 |
| #17 | Murrysville, PA | 3,559 | 521 |
| #18 | Monroeville, PA | 3,458 | 710 |
| #19 | Malvern, PA | 3,447 | 529 |
| #20 | King of Prussia, PA | 3,344 | 578 |
| #21 | Downingtown, PA | 3,204 | 472 |
| #22 | Wayne, PA | 3,165 | 493 |
| #23 | Fairless Hills, PA | 3,067 | 64 |
| #24 | Wexford, PA | 3,013 | 413 |
| #25 | Emmaus, PA | 2,820 | 365 |