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Patent Leaderboard
USPTO Patent Rankings Data through Dec 31, 2025

Ashfield, MA ranks #21,512 worldwide for total patents filed in 2021, with 2 patents from 1 inventor. Leading employers of inventors based in Ashfield, MA include General Plasma.

Showing 1–1 of 1 inventors

Rank Inventor Primary Company Patents
1 John Madocks General Plasma 2

Part of Massachusetts