Patent Leaderboard
USPTO Patent Rankings Data through Dec 31, 2025

Middlefield, MA ranks #47,206 worldwide for total patents filed all time, with 13 patents from 5 inventors. Leading employers of inventors based in Middlefield, MA include Seal-Ryt, Coherent, Beloit.

Showing 1–5 of 5 inventors

Rank Inventor Primary Company Patents
1 Michael F. Huard Seal-Ryt 8
2 Howard L. Knickerbocker Coherent 2
3 Bruce E. Nunn Beloit 1
3 Douglas F. F. Robare 1
3 Cameron M. McQuaid Combustion Engineering 1

Part of Massachusetts