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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 1,358 patents in 2019.peak 1,3581996: 397 patents19961997: 383 patents1998: 491 patents1999: 509 patents19992000: 493 patents2001: 561 patents2002: 547 patents20022003: 546 patents2004: 433 patents2005: 368 patents20052006: 462 patents2007: 500 patents2008: 327 patents20082009: 344 patents2010: 486 patents2011: 493 patents20112012: 501 patents2013: 663 patents2014: 641 patents20142015: 748 patents2016: 876 patents2017: 1,147 patents20172018: 1,139 patents2019: 1,358 patents2020: 1,275 patents20202021: 1,031 patents2022: 1,155 patents2023: 1,082 patents20232024: 1,219 patents2025: 1,121 patents2025

Top Inventors

Rank Inventor Patents Primary Company
1 Koji Yamashita 15 Mitsubishi Electric
2 Sung Jin Yang 12 Samsung
3 Michael Alexander Benedict 10 Haier Us Appliance Solutions
#4 Michael Goodman Schroeder 10 Haier Us Appliance Solutions
#5 Patrick J. Boarman 10 Whirlpool
#6 Guolian Wu 9 Whirlpool
#7 Rakesh Goel 9 Lennox Industries
#8 Kosuke Tanaka 8 Tdk
#9 Lucy Yi Liu 8 Carrier
#10 Takeshi Hatomura 8 Mitsubishi Electric
#11 Alan Joseph Mitchell 7 Haier Us Appliance Solutions
#12 Brian Michael Schork 7 Haier Us Appliance Solutions
#13 Christoph Becke 7 Bsh Bosch Und Siemens Hausgeräte Gmbh
#14 Christine Hartwein 7 Bsh Hausgeräte Gmbh
#15 David G. Beers 7 Haier Us Appliance Solutions
#16 Haruyuki Nishijima 7 Denso
#17 Henry Edward Howard 7 Praxair Technology
#18 Ikkyu Lee 7 LG
#19 Jeonghwan Kim 7 LG
#20 Max Eicher 7 Bsh Hausgeräte Gmbh
#21 Myoungju Lee 7 LG
#22 Naofumi Takenaka 7 Mitsubishi Electric
#23 Osamu Morimoto 7 Mitsubishi Electric
#24 Steven J. Kuehl 7 Whirlpool
#25 Suresh Duraisamy 7 Carrier
#26 Alberto R. Gomes 6 Whirlpool
#27 Kenichi Suzuki 6 Sanden
#28 Kwanhyung Kim 6 LG
#29 Mingyao Xu 6 Sumitomo Heavy Industries
#30 Neil M. Prosser 6 Praxair Technology
#31 Samnyol Hong 6 LG
#32 Shinichi Wakamoto 6 Mitsubishi Electric
#33 Sungdu Kwon 6 LG
#34 Yen-Hsi Lin 6 Whirlpool
#35 Alexander Lifson 5 Carrier
#36 Andrew D. Litch 5 Whirlpool
#37 Augusto Zimmermann 5 Heatcraft Refrigeration Products
#38 Axel Julio Ramm 5 Whirlpool
#39 Changwoan Yang 5 LG
#40 Daisuke Shimamoto 5 Mitsubishi Electric
#41 Eric Berg 5 Lennox Industries
#42 Etsuhisa Yamada 5 Denso
#43 Hank M. Hudson 5 Ortloff Engineers
#44 Hans-Joachim Huff 5 Carrier
#45 Jea Won Lee 5 Samsung
#46 John D. Wilkinson 5 Ortloff Engineers
#47 Koji Azuma 5 Mitsubishi Electric
#48 Kyle T. Cuellar 5 Ortloff Engineers
#49 Masood Ali 5 Heatcraft Refrigeration Products
#50 Mark McMasters 5 Bosch Automotive Service Solutions
#51 Myungjin Chung 5 LG
#52 Nihat O. Cur 5 Whirlpool
#53 Philipp Kleinlein 5 Bsh Hausgeräte Gmbh
#54 Ralph Staud 5 Bsh Hausgeräte Gmbh
#55 Sangbong Lee 5 LG
#56 Thomas Tischer 5 Bsh Hausgeräte Gmbh
#57 Tomotaka Ishikawa 5 Toyota
#58 Vijayaraghavan S. Chakravarthy 5 Praxair Technology
#59 Yang Luo 5 Grirem Advanced Materials Co.
#60 Yi Qu 5 Lennox Industries
#61 Yuji Motomura 5 Mitsubishi Electric
#62 Alp Ilercil 4 Ambassador Asset Management Limited
#63 Andrew F. Johnke 4 Ortloff Engineers
#64 Andreas Kessler 4 Bsh Hausgeräte Gmbh
#65 Brian K. Culley 4 Whirlpool
#66 Brent Alden Junge 4 Haier Us Appliance Solutions
#67 Chad J. Rotter 4 Whirlpool
#68 Dylan M. Lundberg 4 Bosch Automotive Service Solutions
#69 Gregory Gene Hortin 4 Whirlpool
#70 Hojong Jeong 4 LG
#71 Hyoungkeun Lim 4 LG
#72 Jae Koog An 4 Samsung
#73 Jaime A. Valencia 4 ExxonMobil
#74 Joe T. Lynch 4 Ortloff Engineers
#75 John Mak 4 Fluor Technologies
#76 Karl-Friedrich Laible 4 Bsh Hausgeräte Gmbh
#77 Keisuke Takayama 4 Mitsubishi Electric
#78 Klaus Foersterling 4 Bsh Hausgeräte Gmbh
#79 Masahiro Oka 4 Daikin Industries
#80 Mark Olsen 4 Lennox Industries
#81 Maulik R. Shelat 4 Praxair Technology
#82 Michael F. Taras 4 Carrier
#83 Michael A. Turney 4 L'Air Liquide, Societe Anonyme Pour L'Etude Et L'Exploitation Des Procedes Georges Claude
#84 Paul B. Allard 4 Whirlpool
#85 Paul Dubina 4 Electrolux Home Products
#86 Shinhyun Park 4 LG
#87 Stephen S. Hancock 4 Trane International
#88 Takashi Kimura 4 Canon
#89 Takeshi Sugimoto 4 Mitsubishi Electric
#90 Tanzer Yildizgoecer 4 Bsh Hausgeräte Gmbh
#91 Thomas D. Radcliff 4 Carrier
#92 William L. Kopko 4 Johnson Controls Technology
#93 W. Larry Lewis 4 Ortloff Engineers
#94 Woo Yeol Yoo 4 Samsung
#95 Yasser Jebbari 4 L'Air Liquide, Societe Anonyme Pour L'Etude Et L'Exploitation Des Procedes Georges Claude
#96 Yoshiaki Takano 4 Denso
#97 Yuki UGAJIN 4 Mitsubishi Electric
#98 Zvonko Asprovski 4 Carrier
#99 Adam Ellis 3 Electrolux Home Products
#100 Akira Ishibashi 3 Mitsubishi Electric

Top Companies

Rank Company Patents
1 LG 96
2 Whirlpool 72
3 Mitsubishi Electric 71
#4 Samsung 60
#5 Carrier 38
#6 Bsh Hausgeräte Gmbh 37
#7 Haier Us Appliance Solutions 35
#8 Dongbu Daewoo Electronics 29
#9 Praxair Technology 21
#10 Denso 19
#11 Electrolux Home Products 19
#12 Lennox Industries 18
#13 Daikin Industries 17
#14 L'Air Liquide, Societe Anonyme Pour L'Etude Et L'Exploitation Des Procedes Georges Claude 17
#15 Trane International 13
#16 Panasonic 12
#17 Heatcraft Refrigeration Products 10
#18 Sumitomo Heavy Industries 10
#19 Johnson Controls Technology 9
#20 Linde Gmbh 8
#21 Sanden 8
#22 Air Products And Chemicals 7
#23 Arcelik Anonim Sirketi 7
#24 Fujitsu General Limited 7
#25 Danfoss A/S 6
#26 Emerson Climate Technologies 6
#27 Keihin Thermal Technology 6
#28 Unknown 6
#29 ExxonMobil 6
#30 Bosch Automotive Service Solutions 5
#31 Mahle International Gmbh 5
#32 Mitsubishi Heavy Industries Thermal Systems 5
#33 Ortloff Engineers 5
#34 Robert Bosch Gmbh 5
#35 Thermo King 5
#36 Ambassador Asset Management Limited 4
#37 Emz-Hanauer Gmbh & Co. Kgaa 4
#38 Fluor Technologies 4
#39 Hyundai Motor 4
#40 S.M.E. Products Lp 4
#41 GE 4
#42 RTX (Raytheon) 4
#43 Asahi Glass Co. 3
#44 Efficient Energy Gmbh 3
#45 Gentherm Incorporated 3
#46 Hefei Hualing Co. 3
#47 Hefei Midea Refrigerator Co. 3
#48 Hoshizaki America 3
#49 Liebherr-Hausgeräte Lienz Gmbh 3
#50 Liebherr-Hausgeräte Ochsenhausen Gmbh 3
#51 Nanjing Reclaimer Environmental Teknik Co. 3
#52 National Technology & Engineering Solutions Of Sandia 3
#53 Parker-Hannifin 3
#54 Phillips Petroleum 3
#55 Rheem Manufacturing 3
#56 Scottsman Group 3
#57 Sharp Kabushiki Kaisha 3
#58 True Manufacturing Co. 3
#59 IBM 3
#60 Lockheed Martin 3
#61 1304338 Alberta 2
#62 1304342 Alberta 2
#63 Alfa Laval Corporate Ab 2
#64 Arizona Board Of Regents For And On Behalf Of Arizona State University 2
#65 Astronautics Corporation Of America 2
#66 Basf Se 2
#67 Bergstrom 2
#68 Bitzer Kühlmaschinenbau Gmbh 2
#69 Brooks Automation Gmbh 2
#70 Bruker Biospin Gmbh 2
#71 Cooltech Applications 2
#72 Denso International America 2
#73 Eberspächer Climate Control Systems Gmbh 2
#74 Electrolux Appliances Aktiebolag 2
#75 Fisher Controls International 2
#76 Gd Midea Heating & Ventilating Equipment Co. 2
#77 Gree Electric Appliances, Inc. Of Zhuhai 2
#78 Hamilton Sundstrand 2
#79 Hanon Systems 2
#80 Hill Phoenix 2
#81 Hitachi-Johnson Controls Air Conditioning 2
#82 Hudson Technologies 2
#83 Hussmann 2
#84 Illinois Tool Works 2
#85 Toyota Central R&D Labs 2
#86 KFUPM 2
#87 Liddup 2
#88 Midea Group Co. 2
#89 Mitsubishi Electric 2
#90 Mitsubishi Heavy Industries Automotive Thermal Systems 2
#91 Oxford Instruments Nanotechnology Tools Limited 2
#92 Reflect Scientific 2
#93 Saginomiya Seisakusho 2
#94 Sanhua (Hangzhou) Micro Channel Heat Exchanger Co. 2
#95 Shell Oil Compny 2
#96 Siemens Aktiengesellschaft 2
#97 Tgk Co. 2
#98 The Aerospace 2
#99 The Sure Chill Company Limited 2
#100 NASA 2