Patent Leaderboard
USPTO Patent Rankings Data through Dec 31, 2025

Marlborough, CT ranks #1,790 worldwide for total patents filed in 2021, with 75 patents from 24 inventors. Leading employers of inventors based in Marlborough, CT include Otis Elevator, RTX (Raytheon), Advanced Drainage Systems.

Showing 1–24 of 24 inventors

Rank Inventor Primary Company Patents
1 Walter Thomas Schmidt Otis Elevator 11
2 John Joseph Marcin RTX (Raytheon) 10
3 David Ulrich Furrer RTX (Raytheon) 9
#4 Boris Karpman RTX (Raytheon) 6
#5 Dustin W. Davis RTX (Raytheon) 5
#5 Michael J. Maloney RTX (Raytheon) 5
#7 Ronald R. Vitarelli Advanced Drainage Systems 4
#8 Nicholas Waters Oren RTX (Raytheon) 3
#9 Steven B. Johnson RTX (Raytheon) 2
#9 David W. Morganson Hamilton Sundstrand 2
#9 Marc J. Muldoon RTX (Raytheon) 2
#9 Kathryn S. Read RTX (Raytheon) 2
#9 Justin R. Hawkes RTX (Raytheon) 2
#9 Andrew P. Boursy RTX (Raytheon) 2
#15 John D. Cannata Sikorsky Aircraft 1
#15 Timothy Braun Welch Allyn 1
#15 Derek T. Welch RTX (Raytheon) 1
#15 Serge L. Shishkin RTX (Raytheon) 1
#15 Christopher StMary RTX (Raytheon) 1
#15 Adam J. Diener RTX (Raytheon) 1
#15 James M. Koonankeil RTX (Raytheon) 1
#15 Nicholas S. Vishnosky University Of Louisville 1
#15 Scott C. Billings RTX (Raytheon) 1
#15 Benjamin Tyson Sweet Triax Technologies 1

Part of Connecticut