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Patent Leaderboard
USPTO Patent Rankings Data through Dec 31, 2025

Rankings count each patent once by its primary Cooperative Patent Classification. All-time pages aggregate the full database; year pages use patent grant year.

Recent years: 2016201720182019202020212022202320242025

Patents per Year

Patents granted per year, 1996 to 2025Bar chart with a peak of 422 patents in 2024.peak 4221996: 177 patents19961997: 154 patents1998: 176 patents1999: 145 patents19992000: 161 patents2001: 230 patents2002: 225 patents20022003: 193 patents2004: 156 patents2005: 161 patents20052006: 147 patents2007: 137 patents2008: 120 patents20082009: 147 patents2010: 209 patents2011: 179 patents20112012: 246 patents2013: 321 patents2014: 338 patents20142015: 329 patents2016: 327 patents2017: 365 patents20172018: 325 patents2019: 377 patents2020: 392 patents20202021: 383 patents2022: 363 patents2023: 349 patents20232024: 422 patents2025: 387 patents2025

Top Inventors

Rank Inventor Patents Primary Company
1 Trond Austrheim 6 Autostore Technology As
2 Evan Thomas Gebhardt 5 Norfolk Southern
3 Mabby Nicholas Amouie 5 Norfolk Southern
#4 Mario Fernandes 5 Siemens Mobility Gmbh
#5 Michael James Brick 5 Bnsf Railway
#6 Michael E. Ramolt 5 Bnsf Railway
#7 Samuel Minton 5 Bnsf Railway
#8 Xiaoyong Wang 5 Ford
#9 Benjamin Stuart Stabler 4 Parallel Systems
#10 Colin Usher 4
#11 James D. Brooks 4 GE
#12 Jeffrey D. Kernwein 4
#13 Kurt A. Gunther 4 Metrom Rail
#14 Mitchell Beard 4 Palantir Technologies
#15 Patrick Dunn 4 Motorola
#16 Scott D. Sapp 4 Bnsf Railway
#17 Tsuyoshi Minakawa 4 Hitachi
#18 Ajith Kuttannair Kumar 3 GE
#19 Alex Samoylov 3
#20 Anthony D. Paul 3 Transportation Ip Holdings
#21 Brian Thomas Yeager 3
#22 Erik L. Gotlund 3 Nevis Industries
#23 Harsh Piparsaniya 3 Mastercard
#24 Kenneth W. Huck 3 Trinity North American Freight Car
#25 Keith Wesley Wait 3 Haier Us Appliance Solutions
#26 Lisa Kelly 3 Oracle
#27 Marcus Coester 3
#28 Marc Greenbaum 3 Parallel Systems
#29 Matthew Vrba 3
#30 Ragnar Stuhaug 3 Autostore Technology As
#31 Richard C. Carlson 3 Metrom Rail
#32 Richard William Keller 3 Bnsf Railway
#33 Thomas Samuel Fox 3
#34 Yoshihiro Kobayashi 3 Seiko Epson
#35 Aaron Q. Neeley 2 Herzog Railroad Services
#36 Alon Green 2 Thales Canada
#37 Andrew Karl Diehl 2 Eddy Current Limited Partnership
#38 Ann K. Grimm 2
#39 Andy Alexander Hilgers 2 Hyperloop Technologies
#40 Andrew H. Martin 2 Amsted Rail Company
#41 Ankit Mathur 2 Transportation Ip Holdings
#42 Benjamin Henniges 2
#43 Carter Ray Andrews 2 Trinity Rail Group
#44 Carl L. Haas 2
#45 Christopher Meers 2 Dellner Couplers Ab
#46 Christopher Neil Pickard 2 Bnsf Railway
#47 David P. Cannon 2
#48 David Allen Eldredge 2 GE
#49 David Michael Peltz 2 GE
#50 Daniel J. Schuller 2 Webasto Se
#51 Donghua Wu 2 Crrc Qingdao Sifang Co.
#52 Evan Paul Sevel 2 Progress Rail Locomotive
#53 Fabian Kuhlemann 2 Strothmann Machines & Handling Gmbh
#54 Frank Wawrzyniak 2 GE
#55 Georg Lohneis 2 Siemens Mobility Gmbh
#56 Hark Braren 2 Bnsf Railway
#57 Harry Kirk Mathews, Jr. 2 GE
#58 Haigui XU 2 Casco Signal
#59 Hongjun Jiang 2 Casco Signal
#60 Hongjie Liu 2 Conopco
#61 Huaxiang LIU 2 Casco Signal
#62 James A. Oswald 2
#63 Jeffrey Michael Fries 2 Alstom Transport Technologies
#64 Jeremy Jovenall 2 Cattron North America
#65 Jerry W. Vande Sande 2 Trinity North American Freight Car
#66 Jidong Lv 2 Beijing Jiaotong University
#67 John William Brand 2 GE
#68 John Hoang 2 Lam Research
#69 John Howard 2 Parallel Systems
#70 Justin M. Lidgett 2 Amsted Rail Company
#71 Kaikuo ZHUO 2 Byd Company Limited
#72 Kevin Angel 2
#73 Kent Robert Shue 2 Bnsf Railway
#74 Kimiyasu YOSHIMURA 2 Hitachi
#75 Kyouji TAKAHARA 2 Hitachi
#76 Lee A. Reitz 2 Trinity Rail Group
#77 Liang Pan 2 China Petroleum & Chemical
#78 Marcos Blanco Fernandes 2
#79 Marc W. Cygnus 2 Metrom Rail
#80 Marcos Blanco Fernandes 2 Progress Rail Services
#81 Markus Ostendorf 2 Strothmann Machines & Handling Gmbh
#82 Matthew Soule 2 Parallel Systems
#83 Mark Harinui Thomson 2
#84 Michael E. Antonakakis 2 Toyota
#85 Michael Bentrup 2 Strothmann Machines & Handling Gmbh
#86 Ming Chai 2 Beijing Jiaotong University
#87 Milan Karunaratne 2 GE
#88 Michael Thomason 2 onsemi
#89 Monica McKenna 2 Siemens Mobility Gmbh
#90 Nabil N. Ghaly 2 Siemens Industry
#91 Nathaniel W. Merry 2 Bnsf Railway
#92 Omer Metel 2 Siemens Mobility Gmbh
#93 Oskar Hans Wolfgang Coester 2
#94 Paul D. Gies 2 Athena Industrial Technologies
#95 Paul Kuhn 2 Bnsf Railway
#96 Parth Mandrekar 2
#97 Padmaprabha Subbaraj 2 Transportation Ip Holdings
#98 Pete Claussen 2 Knoxville Locomotive Works
#99 Peter L. Jones 2 Gunderson
#100 Philipp Heinzl 2 Siemens Mobility Austria Gmbh

Top Companies

Rank Company Patents
1 Siemens Mobility Gmbh 27
2 Transportation Ip Holdings 20
3 Bnsf Railway 18
#4 Mitsubishi Electric 17
#5 Casco Signal 12
#6 Autostore Technology As 7
#7 Hitachi 7
#8 Parallel Systems 6
#9 Westinghouse Air Brake 6
#10 Amsted Rail Company 4
#11 Gunderson 4
#12 Siemens Mobility Austria Gmbh 4
#13 Alstom Technology 3
#14 Byd Company Limited 3
#15 Crrc Nanjing Puzhen Co. 3
#16 Crrc Qingdao Sifang Co. 3
#17 Metrom Rail 3
#18 Poma 3
#19 Progress Rail Services 3
#20 Seiko Epson 3
#21 Semes Co. 3
#22 Beijing Jiaotong University 2
#23 Bombardier Transportation Gmbh 2
#24 Cattron North America 2
#25 Dellner Couplers Ab 2
#26 Herzog Railroad Services 2
#27 Hyperloop Technologies 2
#28 Knorr-Bremse Systeme Für Schienenfahrzeuge Gmbh 2
#29 Murata Machinery 2
#30 National Steel Car Limited 2
#31 Progress Rail Locomotive 2
#32 Southwest Jiaotong University 2
#33 Stadler Rail Ag 2
#34 Strothmann Machines & Handling Gmbh 2
#35 Trinity Rail Group 2
#36 Voith Patent Gmbh 2
#37 Comcast 2
#38 Amazon 1
#39 Abb Schweiz Ag 1
#40 A. Stucki 1
#41 Athena Industrial Technologies 1
#42 Bilberry Sas 1
#43 Cavnue Technology 1
#44 C.D.L. Electric Company 1
#45 Central South University 1
#46 China Academy Of Railway Sciences Corporation 1
#47 China University Of Mining And Technology 1
#48 Cngmotive 1
#49 CEA 1
#50 Crrc Tangshan Co. 1
#51 Daifuku Co. 1
#52 Eaglerail Container Logistics 1
#53 Elta Systems 1
#54 Exail 1
#55 Fnv Ip B.V. 1
#56 Furrer + Frey Ag 1
#57 Harsco 1
#58 Herzog Services 1
#59 Hitachi Rail Gts Canada 1
#60 Hitachi Rail Sts Usa 1
#61 Humanetics 1
#62 Hyundai Motor 1
#63 Icomera Ab 1
#64 Innova Patent Gmbh 1
#65 International Electronic Machines 1
#66 Jiangxi University Of Science And Technology 1
#67 Kawasaki 1
#68 Kia 1
#69 Knick Elektronische Messgeräte Gmbh & Co. Kg 1
#70 Knorr-Bremse Gesellschaft Mit Beschränkter Haftung 1
#71 Knoxville Locomotive Works 1
#72 Korea Railroad Research Institute 1
#73 Kyocera 1
#74 Leitner S.P.A. 1
#75 Nec 1
#76 Nevis Industries 1
#77 New York City Transit Authority 1
#78 Nippon Sharyo 1
#79 Nippon Steel 1
#80 Norfolk Southern 1
#81 Pennsy 1
#82 Plasser & Theurer Export Von Bahnbaumaschinen Gesellschaft M.B.H. 1
#83 Rockwell Automation 1
#84 Sercel 1
#85 Stc 1
#86 Tata Consultancy Services Limited 1
#87 Tata Steel Nederland Technology B.V. 1
#88 The Island Radar 1
#89 Tongji University 1
#90 Traffic Control Technology Co. 1
#91 Trinity North American Freight Car 1
#92 University Of South Carolina 1
#93 Vallourec Tubos Do Brasil Ltda. 1
#94 Xuzhou Liren Monorail Transportation Equipment Co. 1
#95 Zhuzhou Times New Material Technology Co. 1
#96 Chevron 1
#97 Toyota 1