Patent Leaderboard
USPTO Patent Rankings Data through Sept 30, 2025
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Top Companies All Time

Ranked by patent count

Showing 28,551–28,600 of 106,127 companies

Rank Company Patents
#28863 Sumitomo Aluminum Smelting Company, Limited 21
#28864 Acumeter Laboratories 21
#28865 The Ward Machinery 21
#28866 Barnes Engineering 21
#28867 Hudson Oxygen Therapy Sales 21
#28868 Asea Stal Ab 21
#28869 Foseco Trading A.G. 21
#28870 Toshiba Heating Appliances Co. 21
#28871 Ricoh Systems 21
#28872 Itt Defense Communications, A Division Of Itt 21
#28873 Rank Xerox Limited 21
#28874 Priam 21
#28875 Sealed Power 21
#28876 Strata Bit 21
#28877 Dorina Nahmaschinen Gmbh 21
#28878 Compagnie Industrielle De Mecanismes En Abrege C.I.M. 21
#28879 Interx Research 21
#28880 A/S Kongsberg Vapenfabrikk 21
#28881 The Machlett Laboratories 21
#28882 Centro Sperimentale Metallurgico Spa 21
#28883 Thomson-Csf Telephone 21
#28884 Ambac Industries, Incorporated 21
#28885 Respiratory Care 21
#28886 The J. B. Foote Foundry 21
#28887 Societe Alsacienne De Constructions Mecaniques De Mulhouse 21
#28888 El Paso Polyolefins 21
#28889 Gte Business Communication Systems 21
#28890 Te Ka De Felten & Guilleaume Fernmeldeanlagen Gmbh 21
#28891 The Franklin Institute 21
#28892 C. L. Frost & Son 21
#28893 Kyoto Ceramic Company 21
#28894 Englishtown Sportswear 21
#28895 Acco Industries 21
#28896 Haggar 21
#28897 Yokogawa Electric Works 21
#28898 Dr. E. Fresenius Chemisch-Pharmazeutische Industrie Kg Apparatebau Kg 21
#28899 Service D'Exploitation Industrielle Des Tabacs Et Des Allumettes 21
#28900 Kennecott Copper 21
#28901 Exela Pharma Sciences 21
#28902 Manicka Institute 21
#28903 Hydrow 21
#28904 Keystone Powdered Metal 21
#28905 Eyepoint Pharmaceuticals 21
#28906 Pf Waterworks Lp 21
#28907 Alteryx 21
#28908 Duke Technologies 21
#28909 Gigagen 21
#28910 Ntn-Snr Roulements 21
#28911 Amperity 21
#28912 Huntington Bancshares Incorporated 21