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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 Lin Ren 6 Byd Company Limited
2 Andreas ULBRICHT 5 Cg Rail—Chinesisch-Deutsches Forschungs- Und Entwicklungszentrum Für Bahn- Und Verkehrstechnik Dresden Gmbh
3 Fanghong Peng 5 Byd Company Limited
#4 Hao Zeng 5 Byd Company Limited
#5 Jeffrey D. Kernwein 5
#6 Junjie Liu 5 Byd Company Limited
#7 Sansan Ding 5 Crrc Qingdao Sifang Co.
#8 Werner Hufenbach 5 Thyssenkrupp Carbon Components Gmbh
#9 Alexandre Neophytou 4 Hyperloop Transportation Technologies
#10 Alexandre Zisa 4 Hyperloop Transportation Technologies
#11 Ann K. Grimm 4
#12 Bret Dwayne Worden 4 GE
#13 Christopher Neil Pickard 4 Bnsf Railway
#14 Daolin Li 4 Byd Company Limited
#15 David Michael Peltz 4 GE
#16 Jan Kukulski 4 Axtone Spolka Akcyjna
#17 Jeremy Jovenall 4 Cattron North America
#18 Kent Robert Shue 4 Bnsf Railway
#19 Mark Bradshaw Kraeling 4 GE
#20 Michael Sarin 4 Hyperloop Transportation Technologies
#21 Nikolaus Erharter 4 Leitner S.P.A.
#22 Zhicheng TAN 4 Byd Company Limited
#23 Aaron Stern 3 Pennsy
#24 Benjamin Stuart Stabler 3 Parallel Systems
#25 Bradley Howard 3 Progress Rail Services
#26 Devin Steven Sage 3 C.D.L. Electric Company
#27 Eugene Smith 3 GE
#28 Faping Wang 3 Byd Company Limited
#29 Honglei TIAN 3 Crrc Qingdao Sifang Co.
#30 Jared Klineman Cooper 3 GE
#31 James A. Oswald 3
#32 Jeffrey Michael Fries 3 Alstom Transport Technologies
#33 Jerry Wade Specht 3 Bnsf Railway
#34 Jingjun Zhang 3 GE
#35 John William Brand 3 GE
#36 John Howard 3 Parallel Systems
#37 Kyle R. Coston 3 Trinity Rail Group
#38 Leszek Wasilewski 3 Axtone Spolka Akcyjna
#39 Matthew Dick 3 Ensco
#40 Marco Antonio Ibarra 3 C.D.L. Electric Company
#41 Matthew Soule 3 Parallel Systems
#42 Manuel Tavares 3 Pennsy
#43 Mitchell Beard 3 Palantir Technologies
#44 Michael Carmen Lawson 3 C.D.L. Electric Company
#45 Michael J. Schmidt 3 Pennsy
#46 Oscar Alonso Garrido 3 Siemens Mobility Gmbh
#47 Paul Steven Wike 3 Amsted Rail Company
#48 Samson Yilma 3 Ensco
#49 Walter J. Peach 3 Standard Car Truck
#50 Zhipeng Liu 3 Ensco
#51 Aiqin TIAN 2 Crrc Qingdao Sifang Co.
#52 Ajith Kuttannair Kumar 2 GE
#53 Alon Green 2 Thales Canada
#54 Andrew Michael Ellis 2 Safran Landing Systems
#55 Atsushi Sano 2 Tdk
#56 Bernhard Evers 2 Siemens Mobility Gmbh
#57 Bruno Fiquet 2 Siemens Mobility Gmbh
#58 Brian Harp 2 Siemens Mobility Gmbh
#59 Brian Ignaut 2 Parallel Systems
#60 Chris Schuchmann 2 Alstom Transport Technologies
#61 Chongcheng Zhong 2 Cg Rail—Chinesisch-Deutsches Forschungs- Und Entwicklungszentrum Für Bahn- Und Verkehrstechnik Dresden Gmbh
#62 David W. Higginbotham 2 Trinity Rail Group
#63 Daisuke Koshino 2 Mitsubishi Electric
#64 Darel Mesher 2 Tetra Tech
#65 Dawei RUAN 2 Cg Rail—Chinesisch-Deutsches Forschungs- Und Entwicklungszentrum Für Bahn- Und Verkehrstechnik Dresden Gmbh
#66 Derek Kevin Woo 2 GE
#67 Eduard Nies 2 Knorr-Bremse Systeme Für Schienenfahrzeuge Gmbh
#68 Erik Johannsen 2 Voith Patent Gmbh
#69 Federic Carl 2 Bombardier Transportation Gmbh
#70 Graeme Peter Arthur Klim 2 Safran Landing Systems Canada
#71 Grzegorz Zurawski 2 Axtone Spolka Akcyjna
#72 Guido Bieker 2 Bombardier Transportation Gmbh
#73 Hans-Joachim Gronau 2 Siemens Mobility Gmbh
#74 Hartmut Wieser 2 Leitner S.P.A.
#75 Herbert Kammerloher 2 Siemens Mobility Gmbh
#76 Hongtao Wang 2 Qualcomm
#77 Ibrahim Kacar 2 Transportation Ip Holdings
#78 James Lucas 2 Zebra Technologies
#79 Jens Braband 2 Siemens Mobility Gmbh
#80 Jean Victor Peloquin 2
#81 Jiajie He 2 Cg Rail—Chinesisch-Deutsches Forschungs- Und Entwicklungszentrum Für Bahn- Und Verkehrstechnik Dresden Gmbh
#82 Jianbo Wu 2 Sichuan University
#83 John D. Anderson 2 Standard Car Truck
#84 John Frederick 2 Transportation Ip Holdings
#85 Joseph Forrest Noffsinger 2 GE
#86 Justin Guang Yuang Cheng 2 Safran Landing Systems
#87 Jurgen Muhr 2 Knorr-Bremse Systeme Für Schienenfahrzeuge Gmbh
#88 Karsten Rahn 2 Siemens Aktiengesellschaft
#89 Kai Schicker 2 Thales Management & Services Deutschland Gmbh
#90 Kaikuo ZHUO 2 Byd Company Limited
#91 Kenneth W. Huck 2 Trinity North American Freight Car
#92 Krzysztof Puszkarz 2
#93 Kyle Keilty Williams 2 Bnsf Railway
#94 Lars Hoffmann 2 Giesecke & Devrient Gmbh
#95 Martin Buerger 2 Plasser & Theurer Export Von Bahnbaumaschinen Gesellschaft M.B.H.
#96 Matthias Homann 2 Voith Patent Gmbh
#97 Mark A. Sterrett 2 Knorr-Bremse Systeme Für Schienenfahrzeuge Gmbh
#98 Martin Teichmann 2 Siemens Ag Österreich
#99 Michael James Brick 2 Bnsf Railway
#100 Milan STUPAR 2 Matisa Matériel Industriel S.A.

Top Companies

Rank Company Patents
1 Siemens Mobility Gmbh 33
2 Transportation Ip Holdings 18
3 Westinghouse Air Brake 16
#4 Byd Company Limited 15
#5 Bnsf Railway 13
#6 Crrc Qingdao Sifang Co. 11
#7 Bombardier Transportation Gmbh 8
#8 Alstom Transport Technologies 7
#9 Mitsubishi Electric 7
#10 Amsted Rail Company 6
#11 Leitner S.P.A. 6
#12 Cg Rail—Chinesisch-Deutsches Forschungs- Und Entwicklungszentrum Für Bahn- Und Verkehrstechnik Dresden Gmbh 5
#13 Kawasaki 5
#14 Siemens Mobility Austria Gmbh 5
#15 Trinity Rail Group 5
#16 Voith Patent Gmbh 5
#17 Cattron North America 4
#18 Hyperloop Transportation Technologies 4
#19 Kawasaki Railcar Manufacturing Co. 4
#20 Knorr-Bremse Systeme Für Schienenfahrzeuge Gmbh 4
#21 Standard Car Truck 4
#22 C.D.L. Electric Company 3
#23 Dellner Couplers Ab 3
#24 Ensco 3
#25 Innova Patent Gmbh 3
#26 Kabushiki Kaisha Toshiba 3
#27 Parallel Systems 3
#28 Pennsy 3
#29 Progress Rail Services 3
#30 Toshiba Infrastructure Systems & Solutions 3
#31 Autostore Technology As 2
#32 Crrc Qingdao Sifang Rolling Stock Research Institute Co. 2
#33 Crrc Tangshan Co. 2
#34 East China Jiaotong University 2
#35 Faiveley Transport Italia S.P.A. 2
#36 Harsco 2
#37 Hübner Gmbh & Co. Kg 2
#38 Hitachi Kokusai Electric 2
#39 Hitachi Rail Sts S.P.A. 2
#40 Hyperloop Technologies 2
#41 Jac Operations 2
#42 Loram Technologies 2
#43 Matisa Matériel Industriel S.A. 2
#44 Nabtesco 2
#45 National Steel Car Limited 2
#46 Nippon Steel 2
#47 Plasser & Theurer Export Von Bahnbaumaschinen Gmbh 2
#48 Poma 2
#49 Safran Landing Systems 2
#50 Safran Landing Systems Canada 2
#51 Tetra Tech 2
#52 Thales Canada 2
#53 Thales Management & Services Deutschland Gmbh 2
#54 The Boeing 2
#55 Trinity North American Freight Car 2
#56 RTX (Raytheon) 2
#57 Amazon 1
#58 Apple 1
#59 Abb Schweiz Ag 1
#60 Alstom Ferroviaria S.P.A 1
#61 Avante International Technology 1
#62 Axtone Spolka Akcyjna 1
#63 Bnsf Logistics 1
#64 Central Japan Railway Comany 1
#65 Clearpath Robotics 1
#66 Eaglerail Container Logistics 1
#67 Fccl Partnership 1
#68 Flowserve Management 1
#69 Focused Technology Solutions 1
#70 Glydways 1
#71 Hitachi 1
#72 Hitachi Energy Switzerland Ag 1
#73 Hitachi Rail Sts Usa 1
#74 Icomera Ab 1
#75 ITRI 1
#76 Knorr-Bremse Ag 1
#77 Knorr-Bremse Gesellschaft Mit Beschränkter Haftung 1
#78 Korea Institute Of Civil Engineering And Building Technology 1
#79 Korea Railroad Research Institute 1
#80 K-Technology Usa 1
#81 Kyosan Electric Mfg. Co. 1
#82 L.B. Foster Rail Technologies 1
#83 Mack Rides Gmbh & Co. Kg 1
#84 Metrom Rail 1
#85 Miner Enterprises 1
#86 Mitsubishi Heavy Industries Engineering 1
#87 Nanjing University Of Aeronautics And Astronautics 1
#88 Nec 1
#89 Nevis Industries 1
#90 Newtl 1
#91 Nordco 1
#92 Plasser & Theurer Export Von Bahnbaumaschinen Gesellschaft M.B.H. 1
#93 Precision Rail And Mfg. 1
#94 Progress Rail Locomotive 1
#95 Robotic Research Opco 1
#96 S.A.S. Of Luxemburg 1
#97 Schunk Transit Systems Gmbh 1
#98 Sew-Eurodrive Gmbh & Co. Kg 1
#99 Shandong University Of Science And Technology 1
#100 Siemens S.A.S 1