Patent Leaderboard
USPTO Patent Rankings Data through Dec 31, 2025

Maine ranks #43 among US states for total patents filed in 2023, with 591 patents from 384 inventors across 113 cities. On a per-capita basis that is 0.4 patents per 1,000 residents, a standard benchmark for comparing state-level R&D intensity.

Top Cities in Maine 2023

Rank City Patents Inventors
#1 Fryeburg, ME 109 62
#2 Portland, ME 55 37
#3 Bar Harbor, ME 17 15
#4 Saco, ME 16 12
#5 South Portland, ME 16 12
#6 Cape Elizabeth, ME 14 6
#7 Scarborough, ME 13 9
#8 Falmouth, ME 13 11
#9 York, ME 12 7
#10 Oxford, ME 12 2
#11 Wells, ME 10 6
#12 Windham Center, ME 10 7
#13 Kennebunk, ME 10 8
#14 Hartland, ME 10 1
#15 Eliot, ME 9 8
#16 Brunswick, ME 9 7
#17 Gorham, ME 9 8
#18 Acton, ME 8 1
#19 Yarmouth, ME 8 7
#20 Freeport, ME 8 6
#21 Orono, ME 8 7
#22 Sullivan, ME 7 1
#23 Rockport, ME 7 2
#24 Berwick, ME 7 3
#25 Biddeford, ME 7 4

Top Inventors in Maine 2023

Rank Inventor City Company Patents
1 Edward Hummel Fryeburg Digital Global Systems 11
1 Jeffrey Gniadek Oxford Senko Advanced Components 11
3 Frank Sinclair Hartland Varian Semiconductor Equipment Associates 10
#4 Malcolm Toon Cape Elizabeth The Boeing 8
#4 Gregory Roger Martin Acton Corning Incorporated 8
#6 Kathryn Bauer Thomas Portland The Boeing 7
#6 Gregory F. Jacobs Sullivan Certainteed 7
#8 John Gatzemeyer Fryeburg Colgate-Palmolive 5
#8 Thomas E. Clark Wells RTX (Raytheon) 5
#8 Brian Bloch Fryeburg Colgate-Palmolive 5
#8 John T. Raffle Rockport Electrocore 5
#8 Christophe Bucher Fryeburg As America 5
#13 Melanie K. Tory Portland Salesforce 4
#13 Michael A. Bilodeau Brewer University Of Maine System Board Of Trustees 4
#13 David W. Robertson Ogunquit Eli Lilly 4
#13 Christophe Vailhe Fryeburg Johnson & Johnson 4
#13 Eric William Conley York Covidien Lp 4
#13 Christopher W. Strock Boothbay Harbor RTX (Raytheon) 4
#13 Kevin James McElwee Berwick Boston Scientific Scimed 4
#13 Daniel Warren Hawtof Arundel Corning Incorporated 4
#13 Dave G. Newport Windham Center Thermochem Recovery International 4
#22 Mark Ernest Newbury Fryeburg Verizon 3
#22 Liangbiao CHEN Scarborough onsemi 3
#22 Tianjian Huang Fryeburg Henkel Ip & Holding Gmbh 3
#22 Michael Wolf Blue Hill Green Hills Software 3

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