Patent Leaderboard
USPTO Patent Rankings Data through Dec 31, 2025

Andover, CT ranks #5,870 worldwide for total patents filed all time, with 430 patents from 34 inventors. Leading employers of inventors based in Andover, CT include RTX (Raytheon), Hamilton Sundstrand, Medical Instill Technologies.

Showing 1–34 of 34 inventors

Rank Inventor Primary Company Patents
1 Brian D. Merry RTX (Raytheon) 223
2 Brian St. Rock Hamilton Sundstrand 49
3 Nathaniel Houle Medical Instill Technologies 31
#4 John Pfanstiehl 17
#5 Sean P. McGee RTX (Raytheon) 13
#5 Darren M. Smith RTX (Raytheon) 13
#7 Robert J. Danek GE 11
#7 Darryl C. Stein Gerber Technology 11
#9 Jerome G. Duchesneau RTX (Raytheon) 10
#10 Bill Harrington Casabella Holdings, L.L.C. 5
#11 Stephen A. Paul RTX (Raytheon) 4
#11 Kevin D. Ouellette Sinco 4
#11 Brian St. Rock 4
#11 Mark Raes Hamilton Sundstrand 4
#11 Scott Chalfant Hartford Fire Insurance 4
#16 Gordon A. Perrett RTX (Raytheon) 3
#17 Sean D J Blake RTX (Raytheon) 2
#17 Gregory P. Smith Hamilton Sundstrand 2
#17 Arthur Curtis Becker Hamilton Sundstrand 2
#17 Robert Bene 2
#17 Annette M. Pighetti RTX (Raytheon) 2
#17 Mark R. Tardif RTX (Raytheon) 2
#23 Mary Palliardi Henkel Ip & Holding Gmbh 1
#23 Steven R. Bissell RTX (Raytheon) 1
#23 Vera Killian Unknown 1
#23 Arthur D. Breault 1
#23 Brian M. Rufini Unknown 1
#23 Eric A Shevchencko RTX (Raytheon) 1
#23 Arthur Chris Becker Hamilton Sundstrand 1
#23 Stanley R. Otlowski The L.D. Kichler 1
#23 William James Mc Grath 1
#23 Ronald A. Haverl Smithkline Instruments 1
#23 Brian E. D'Amour RTX (Raytheon) 1
#23 Brian D. Marry RTX (Raytheon) 1

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