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

Ranked by patent count

Showing 12,951–13,000 of 140,708 inventors

Rank Name Patents Location Company
#12951 William L. Schultz 2 Piedmont, CA James River Ii
#12952 Winfried Scholl 2 Düsseldorf, DE Hewi Heinrich Wilke Gmbh
#12953 William N. Schoeffler 2 Lafayette, LA —
#12954 Wilfred H. Schnitzler 2 Manila, PH Del Monte
#12955 Wilhelm Schneider 2 Rednitzhembach, DE Richard Bergner Verbindungstechnik Gmbh & Co. Kg
#12956 William P. Schmidt 2 Newport, MI Mirror Lite
#12957 William A. Schleizer 2 Valparaiso, IN Bmi
#12958 Wilhelm Schiffer 2 Traun, AT Voest-Alpine
#12959 William M. Schaffner 2 Pittsburgh, PA Schaffert Manufacturing Company
#12960 Willi Schaefer 2 Erlangen, DE Siemens Aktiengesellschaft
#12961 Willard H. Sawyer 2 Baton Rouge, LA ExxonMobil
#12962 William J. Saunders 2 Anderson, SC The Coca-Cola
#12963 William E. Sagstetter 2 Denver, CO Medical Safety Products
#12964 William J. Ryan 2 Staten Island, NY Anocoil
#12965 William J. Rutter 2 San Francisco, CA University of California
#12966 William Rutherford 2 Newcastle, OH Pioneer (Corteva)
#12967 William E. Rumberger 2 Newtown Square, PA The Boeing
#12968 William E. Ruhig, Jr. 2 Sterling Heights, MI Colt Industries
#12969 Wilhelm Ruess 2 Pfeffingen, CH Ciba-Geigy
#12970 William Rovinsky 2 Old Bethpage, NY Dorne & Margolin
#12971 William J. Rourke 2 Worcester, MA Gte Laboratories Incorporated
#12972 William Rostoker 2 Chicago, IL Rostoker
#12973 William A. Ross 2 Windsor, CA Pitney Bowes
#12974 William E. Rosen 2 Summit, NJ Sutton Laboratories
#12975 William J. Rose 2 Wayne, PA Coleco Industries
#12976 William H. Rogers 2 St. Augustine, FL Safariland
#12977 William M. Robertson 2 Goodlettsville, TN Marlow Industries
#12978 William C. Roberts 2 West Palm Beach, FL Uddeholm Tooling Aktiebolag
#12979 William D. Robbins 2 Succasunna, NJ —
#12980 William Charles Ripka 2 Wilmington, DE Corvas International
#12981 Wilhelm Riesmeier 2 Lübbecke, DE —
#12982 Wilfried Ribbing 2 Dorsten, DE Huls Aktiengesellschaft
#12983 Wilbert B. Rethage 2 Vandergrift, PA Westinghouse Electric
#12984 William A. Resch, III 2 Quincy, IL Eastman Kodak
#12985 William A. Remers 2 Tucson, AZ University Patents
#12986 William A. Reimer 2 Wheaton, IL Gte Communication Systems
#12987 William R. Reed, Jr. 2 Schenectady, NY GE
#12988 William J. Reagan 2 Yardley, PA Engelhard
#12989 Willard E. Rapp 2 Griggstown, NJ Western Electric Company
#12990 William E. Quinn 2 Whitehouse Station, NJ Comcast
#12991 William R. Puckett 2 Decatur, AL Morton Thiokol
#12992 William F. Priebe 2 Carrollton, TX Atlantic Richfield
#12993 Wilbur D. Pricer 2 Burlington, VT IBM
#12994 William H. Price 2 East Rockaway, NY IBM
#12995 Wilfried Prange 2 Dinslaken, DE Thyssen Stahl Ag
#12996 William J. Powers, III 2 Port Arthur, TX Chevron
#12997 William R. Potter 2 Grand Island, NY Health Research
#12998 Winfried Plundrich 2 Kalchreuth, DE Siemens Aktiengesellschaft
#12999 William W. Plumb 2 Dallas, TX Unknown
#13000 Wim J. M. Pieters 2 Morristown, NJ ExxonMobil