Patent Leaderboard
USPTO Patent Rankings Data through Dec 31, 2025

Chester, PA ranks #7,993 worldwide for total patents filed in 2021, with 11 patents from 9 inventors. Leading employers of inventors based in Chester, PA include Delos Living, Proteometech, University of Minnesota. That works out to 0.3 patents per 1,000 residents, a common benchmark for comparing regional innovation intensity.

Showing 1–9 of 9 inventors

Rank Inventor Primary Company Patents
1 Eric Jon Eisele Delos Living 2
1 Seok Rye Choi Proteometech 2
3 Helen Delsea Patterson 1
3 Stephen John Tucker University of Minnesota 1
3 Crystal Pope Amazon 1
3 Veronika Martynova Globus Medical 1
3 Rajanikanth Vadigepalli Thomas Jefferson University 1
3 Michael James Daciw Brasscraft Manufacturing 1
3 Jufang He City University Of Hong Kong 1

Part of Pennsylvania