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USPTO Patent Rankings Data through Sept 30, 2025
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Top Inventors 1989

Ranked by patent count

Showing 13,051–13,100 of 140,708 inventors

Rank Name Patents Location Company
#13051 William E. May 2 Lawrenceville, GA Siemens Energy & Automation
#13052 William F. Mattson 2 Hinckley, OH The Uniroyal Goodrich Tire
#13053 William F. Masler, III 2 Brecksville, OH B. F. Goodrich
#13054 William F. Marwick 2 Sittingbourne, GB Alcan International Limited
#13055 Winston S. Marshall 2 Bargersville, IN Eli Lilly
#13056 William H. Marshall 2 Peoria, IL —
#13057 Wilbur J. Marner 2 Arcadia, CA Caltech
#13058 William G. Marancik 2 Berkeley Heights, NJ Oxford Superconducting Technology
#13059 William R. Maltman 2 St Helens, GB Pilkington Brothers P.L.C.
#13060 William F. Maloney 2 Del Mar, CA Unknown
#13061 William E. Main 2 Mesa, AZ Motorola
#13062 William H. Maddock 2 Markham, CA Noma
#13063 William H. Luyties 2 Kingwood, TX Shell Offshore
#13064 William Lunderman 2 New York, NY Revlon Consumer Products
#13065 William C. Lumma, Jr. 2 Pennsburg, PA Merck
#13066 Willi Lotz 2 Gatineau, CA Communication Components Antenna
#13067 Wilfredo P. Loreto 2 Hoffman Estates, IL Ait Industries
#13068 William Loh 2 Fremont, CA Chevron
#13069 William D. Lockwood 2 Dayton, OH Con/Span Bridge Systems
#13070 William J. Lindsey 2 Aspen, CO Medex
#13071 William P. Liljestrom 2 Dubuque, IA Tdj Incorporated
#13072 William J. Lichtenberger 2 Murrysville, PA Robertshaw Controls
#13073 William E. Lewis 2 Baton Rouge, LA ExxonMobil
#13074 Wilson Wai Sing Leung 2 Kowloon, CA Alco Electronics Limited
#13075 William R. Lessig, III 2 Cockeysville, MD Black & Decker
#13076 William Coleman Lay 2 Santa Clara, UT Icon Health & Fitness
#13077 William J. Latham 2 Rolla, MO Brewer Science
#13078 William A. Larkin 2 Morristown, NJ M&T Chemicals
#13079 William A. Lane, Jr. 2 Redlands, CA W. A. Lane
#13080 William Allan Lane 2 Carrigrohane, CA Analog Devices
#13081 Willy Kussel 2 Werne, DE Gewerkschaft Eisenhutte Westfalia Gmbh
#13082 Wilhelm Kupper 2 Wegberg, DE W. Schlafhorst Ag &
#13083 Wilhelm Kroniger 2 Kornwestheim, DE Dr. Ing. H.C. F. Porsche Ag
#13084 William J. Kreevich 2 Jasper, IN Inland Steel
#13085 William E. Kramer 2 Fairport, NY Xerox
#13086 William J. Koves 2 Hoffman Estates, IL Uop
#13087 William P. Kornrumpf 2 Schenectady, NY GE
#13088 William H. Korcz 2 Houston, TX Shell Oil Compny
#13089 William C. Korbach 2 Howell, NJ M&T Chemicals
#13090 William L. Konrad 2 Niantic, CT US Air Force
#13091 William F. Koch 2 Lewiston, ME Bachmann Industries
#13092 Wilhelm Klotzer 2 Innsbruck, AT Hoffmann-La Roche
#13093 Wilfred E. Klinner 2 Milton Keynes, GB National Research Development
#13094 Willem Klein 2 Laren, NL —
#13095 Wilfred C. Kittler, Jr. 2 Westlake Village, CA Andus
#13096 William A. Kinney 2 Newtown, PA Aldeyra Therapeutics
#13097 William Kimbrell 2 Inman, SC Milliken &
#13098 William H. Kielmeyer 2 Englewood, CO Schuller International
#13099 William L. Kidder 2 Milwaukee, WI Badger Meter
#13100 William H. Kenney 2 Cleveland, TN Seco Industries