Patent Leaderboard
USPTO Patent Rankings Data through Sept 30, 2025

Frechen, DE ranks #87,345 worldwide for total patents filed all time, with 2 patents from 1 inventor. Leading employers of inventors based in Frechen, DE include Stemcell Technologies.

Showing 1–1 of 1 inventors

Rank Inventor Primary Company Patents
1 Alexandra A. Blak Stemcell Technologies 2