Patent Leaderboard
USPTO Patent Rankings Data through Sept 30, 2025

Showing 1–27 of 27 inventors

Rank Inventor Primary Company Patents
1 Nigel Barksby Arco Chemical Technology 29
2 Paul A. Cain 20
3 Donald L. Morrison Union Carbide Chemicals & Plastics Technology 15
#4 Vivek Julka Reaction 35 7
#5 Robert Cunningham MIT 6
#6 Jeffrey J. Lear Union Carbide Chemicals & Plastics Technology 4
#7 Percy L. Smith Union Carbide 3
#7 Jules Henry International Truck Intellectual Property Company 3
#7 James H. Gilchrist Dow Global Technologies 3
#10 Robert L. Hively 2
#10 Courtland P. Sears, III Union Carbide Chemicals & Plastics Technology 2
#10 Vinayak Maheshwari Union Carbide Chemicals & Plastics Technology 2
#10 Christopher Scott Hunnisett Union Carbide Chemicals & Plastics Technology 2
#14 Jeffrey M. Larnerd 1
#14 Geoffrey Papelier 1
#14 Boyd C. Purcell 1
#14 Melissa Ann Shirkey 1
#14 Paul Witt University of Minnesota 1
#14 Thomas C. Cleveland Union Carbide 1
#14 Wayne R. Wilder Union Carbide Chemicals & Plastics Technology 1
#14 Charles A. Fierbaugh 1
#14 M. Deane Harper 1
#14 David E. Grigsby 1
#14 Murry D. Harper 1
#14 Roger E. Grubb 1
#14 Gary L. Gilleskie Ucar Carbon Technology 1
#14 Matthew S. Ashley Toyota 1

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