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

Ranked by patent count

Showing 12,901–12,950 of 140,708 inventors

Rank Name Patents Location Company
#12901 William R. Verbanets 2 Pittsburgh, PA Westinghouse Electric
#12902 Wilfrid B. Veldkamp 2 Lexington, MA MIT
#12903 Willem van Zijverden 2 Lübeck, DE Dagma Deutsche Automaten- Und Getrankemaschinen Gmbh & Co. Kg
#12904 Willibrordus J. Van Gils 2 Eindhoven, NL U.S. Philips
#12905 William H. Valls 2 Loveland, OH Acme United
#12906 William J. Turney 2 Schaumburg, IL Motorola
#12907 William C. Turner 2 Columbus, GA W.C. Bradley
#12908 William C. Turman 2 San Juan Capistrano, CA —
#12909 William P. Trumble 2 Gatineau, CA Nortel Networks Limited
#12910 William C. Troubridge 2 Kitchener, CA —
#12911 William D. Toth 2 Milford, CT Pitney Bowes
#12912 Wilhelm Tilse 2 Birkenfeld, DE Timex
#12913 William H. Tiedemann 2 Cedarburg, WI Globe-Union
#12914 William A. Thornton, Jr. 2 Cranford, NJ Westinghouse Electric
#12915 William Thornton 2 Cheltenham, TX NASA
#12916 William L. Thompson 2 Chardon, OH The Babcock & Wilcox
#12917 William Thompson 2 Woodburn, OR Huffman
#12918 William C. Thomas 2 Lafayette, LA Thomas Engineering Solutions & Consulting
#12919 William M. Tekatch 2 Schreiber, CA —
#12920 William A. Taylor 2 Evergreen, CO International Fuel Cells
#12921 William L. Taylor 2 Round Rock, TX 3M
#12922 William P. Taylor 2 Winston-Salem, NC The Lubrizol
#12923 Wilhelm Tappe 2 Dortmund, DE Hoesch Stahl Ag
#12924 William J. Tanski 2 Maynard, MA RTX (Raytheon)
#12925 Willard D. Sykes 2 Hugo, MN —
#12926 William J. Sunderland 2 Chesterfield, MO Washington University
#12927 William R. Sumerau 2 Easley, SC The Singer Company Limited
#12928 William E. Stumpf 2 Winona, MN Herman Miller
#12929 Willi Streicher 2 Aalen, DE Bayer Healthcare
#12930 William L. Stevenson 2 Roseville, MN Crown Iron Works Company
#12931 William A. Stevenson 2 Concord, MA Foster-Miller
#12932 William D. Stephens 2 Vienna, VA US Army
#12933 William S. Steller 2 Fairless Hills, PA American Cyanamid
#12934 William W. Stein 2 Beaverton, OR Tektronix
#12935 William H. Steece 2 Columbus, OH AT&T
#12936 Willi Steckelberg 2 West Greenwich, RI Cassella Aktiengesellschaft
#12937 William J. Staudenmayer 2 Rochester, NY Eastman Kodak
#12938 William Stasko 2 West Mifflin, PA Crucible Materials
#12939 William M. Stark 2 Glasgow, GB ICI
#12940 William J. Stape 2 Lewisberry, PA Amp
#12941 William T. Spitz 2 New York, NY AT&T
#12942 William L. Smith 2 Woodstock, NY Vivus
#12943 William J. Sipio 2 Lindenwold, NJ E.I. Du Pont De Nemours And
#12944 William W. Simmons 2 Rancho Palos Verdes, CA Trw Limited
#12945 William E. Shultz 2 Villa Park, IL —
#12946 William D. Sherman 2 Lacey, WA The Boeing
#12947 William R. Sharp 2 Clifton, NJ Dna Plant Technology
#12948 William Maurice Sengelow 2 Billingham, GB Johnson Matthey Plc
#12949 William A. Scott 2 Emerald Isle, NC Tillotson
#12950 William James Schulz, Jr. 2 Midland, MI Dow Corning