{"@context": "https://schema.org", "@type": "BreadcrumbList", "itemListElement": [{"@type": "ListItem", "position": 1, "name": "Home", "item": "https://www.patentleaderboard.com/"}, {"@type": "ListItem", "position": 2, "name": "Cities", "item": "https://www.patentleaderboard.com/cities"}, {"@type": "ListItem", "position": 3, "name": "Massachusetts", "item": "https://www.patentleaderboard.com/state/massachusetts"}, {"@type": "ListItem", "position": 4, "name": "Sheffield, MA", "item": "https://www.patentleaderboard.com/city/sheffield-ma"}]}
Patent Leaderboard
USPTO Patent Rankings Data through Dec 31, 2025

Sheffield, MA ranks #42,921 worldwide for total patents filed all time, with 16 patents from 8 inventors. Leading employers of inventors based in Sheffield, MA include O2Cool, The Mead, Unknown.

Showing 1–8 of 8 inventors

Rank Inventor Primary Company Patents
1 Robert Shanks O2Cool 5
2 William M. Stanard The Mead 4
3 Seymour Robins 2
#4 James Shiminski Unknown 1
#4 Alan Zablonski 1
#4 Dennis Hankey 1
#4 Joseph P. Ullrich GE 1
#4 Ely A. Martell 1

Part of Massachusetts