Patent Leaderboard
USPTO Patent Rankings Data through Dec 31, 2025

Hazelwood, MO ranks #4,652 worldwide for total patents filed all time, with 587 patents from 107 inventors. Leading employers of inventors based in Hazelwood, MO include Mallinckrodt, Mallinckrodt Hospital Products Ip Unlimited, General Motors. That works out to 23.1 patents per 1,000 residents, a common benchmark for comparing regional innovation intensity.

Showing 1–50 of 107 inventors

Rank Inventor Primary Company Patents
1 Raghavan Rajagopalan Mallinckrodt 120
2 Gary L. Cantrell Mallinckrodt 68
3 Jim Potenziano Mallinckrodt Hospital Products Ip Unlimited 26
#4 Gary A. Nichols General Motors 21
#5 John G. Wilson Rockwell Collins 20
#6 Robert Herrick Fairchild Semiconductor 19
#7 Daniel W. Konz The Boeing 18
#7 Steven R. Woulfe Mallinckrodt Medical 18
#9 Jared Bullock Biomerieux 13
#10 Garry R. Tegeler Biomerieux 10
#11 Bethany L. Klausing Emerson Electric 9
#11 Theodore J. Stegeman Labyrinth Technologies 9
#13 John E. Jackson Northrop Grumman 8
#14 Kevin G. Waymack The Boeing 7
#14 John W. Cooley Metal Container 7
#16 Tsz Chung Lai Specgx 6
#16 Jonathan Gaik Specgx 6
#16 Diane McGhee Sherwood Services Ag 6
#19 John T. Stegeman Labyrinth Technologies 5
#19 Hermo Jimenez Mallinckrodt 5
#19 G. R. Tegeler Biomerieux Vitek 5
#19 John R. Grindon Textile/Clothing Technology 5
#19 Charles Lewis, Jr. 5
#19 Daniel D. Gilbertson The Boeing 5
#19 Michael D. Mosley Digital Concepts Of Missouri 5
#19 Wesley G. Wells 5
#27 Virginia C. Vanark Electronics & Space 4
#27 Stephen Corey Wren Carvana 4
#27 Randall E. Campbell Emerson Electric 4
#27 Yasumitsu Okouchi American National Red Cross 4
#27 John M. Deming 4
#27 Joseph Gruber Bausch & Lomb Incorporated 4
#27 Michael Z. Blair Biomerieux 4
#27 Greg Krisher Biomerieux 4
#27 Jaehan Park Specgx 4
#27 Amolkumar Karwa Mallinckrodt 4
#27 Paul Ratliff Mitsubishi Electric 4
#27 Christopher P Bellavia The Boeing 4
#39 Alex Micka Specgx 3
#39 John Schallom Specgx 3
#39 Kwame Bamfo-Agyei Duke Manufacturing 3
#39 Ryan Lathrop Specgx 3
#39 Lawrence E. Meyer Weeks Wholesale Rose Grower 3
#39 Greg Bengard Specgx 3
#39 Amy E. Stroman Monsanto Technology 3
#39 Robert S. Bock Ashland Oil 3
#39 Henry D. Priest Benson Hill 3
#39 Joyce A. Routt 3
#39 Nail Hanov The Boeing 3
#39 Gerbrand Deetman 3

Part of Missouri