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Patent Leaderboard
USPTO Patent Rankings Data through Dec 31, 2025
Home › Technologies › Refrigeration and cooling

Refrigeration and cooling Patent Leaders in 2021 2021

Primary CPC class F25 · Section F

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 Abhay Naik 14 Whirlpool
2 Shitong Zha 12 Heatcraft Refrigeration Products
3 Michael Goodman Schroeder 11 Haier Us Appliance Solutions
#4 Bin Fei 9 Haier Smart Home Co.
#5 Minkyu Oh 8 LG
#6 Jorge Carlos Montalvo Sanchez 7 Bsh Hausgeräte Gmbh
#7 Lynne F. Hunter 7 Whirlpool
#8 Michael Krapp 7 Bsh Hausgeräte Gmbh
#9 Sanjesh Kumar Pathak 7 Whirlpool
#10 Wonyeong Jung 7 LG
#11 Xiaobing Zhu 7 Qingdao Haier Joint Stock Co.
#12 ANDREAS LINDEL 6 Bsh Hausgeräte Gmbh
#13 Christopher Thomas Wakeham 6 Ember Technologies
#14 Clayton Alexander 6 Ember Technologies
#15 Daren John Leith 6 Ember Technologies
#16 Donghoon Lee 6 LG
#17 Eric Scalf 6 Midea Group Co.
#18 Giulia Marinello 6 Whirlpool
#19 Jan Prins 6 Danfoss A/S
#20 Kyungseok Kim 6 LG
#21 Mikko Juhani Timperi 6 Ember Technologies
#22 Mingyao Xu 6 Sumitomo Heavy Industries
#23 Nilton Carlos Bertolini 6 Electrolux Home Products
#24 Parmesh Verma 6 Carrier
#25 Wookyong Lee 6 LG
#26 Andrea Fink 5 Bsh Hausgeräte Gmbh
#27 Deokhyun Youn 5 LG
#28 Jacob William Emmert 5 Ember Technologies
#29 Jin Jeong 5 Samsung
#30 Jindong Kim 5 LG
#31 Kyongbae Park 5 LG
#32 Paul Kong 5 L'Air Liquide, Societe Anonyme Pour L'Etude Et L'Exploitation Des Procedes Georges Claude
#33 Sangbok Choi 5 LG
#34 Seunguk Ahn 5 LG
#35 Seungseob Yeom 5 LG
#36 Shunji Saito 5 Nidec Sankyo
#37 Stephen A. Kujak 5 Trane International
#38 Sunghee KANG 5 LG
#39 Sungwook Kim 5 Samsung
#40 Xueli Cheng 5 Qingdao Haier Joint Stock Co.
#41 Alberto R. Gomes 4 Whirlpool
#42 Bo Jiang 4 Qingdao Haier Joint Stock Co.
#43 Dengqiang Li 4 Qingdao Haier Co.
#44 Dimitri Goloubev 4 Linde Gmbh
#45 Dongseok Kim 4 LG
#46 Frede Schmidt 4 Danfoss A/S
#47 Geunhyung Lee 4 LG
#48 Haoquan Liu 4 Qingdao Haier Joint Stock Co.
#49 Heayoun Sul 4 LG
#50 Hiroki ISHIYAMA 4 Mitsubishi Electric
#51 Hiroyuki Okano 4 Mitsubishi Electric
#52 Jihyun Im 4 LG
#53 Katsuhiro Ishimura 4 Mitsubishi Electric
#54 Kenneth Bank Madsen 4 Danfoss A/S
#55 Kiyoung Lim 4 LG
#56 Kihyun Park 4 LG
#57 Kook Jeong Seo 4 Samsung
#58 Kristian Fredslund 4 Danfoss A/S
#59 Kwanghyun Choi 4 LG
#60 Kyeongyun Kim 4 LG
#61 Laila Ahmed Salim Bahammam 4 King Abdulaziz University
#62 Moon Gyo Jung 4 Samsung
#63 Myungjin Chung 4 LG
#64 Oliver Kniffler 4 Efficient Energy Gmbh
#65 Osamu Morimoto 4 Mitsubishi Electric
#66 Sangmyung Lee 4 LG
#67 Scott A. Nieforth 4 Carrier
#68 Thomas D. Radcliff 4 Carrier
#69 Vishnu M. Sishtla 4 Carrier
#70 Xi Sun 4 Heatcraft Refrigeration Products
#71 Yang Gu 4 Samsung
#72 Yonghyeon Cho 4 LG
#73 Yohei Kato 4 Mitsubishi Electric
#74 Younseok Lee 4 LG
#75 Yoji ONAKA 4 Mitsubishi Electric
#76 Yuji Motomura 4 Mitsubishi Electric
#77 Yusuke Shimazu 4 Mitsubishi Electric
#78 Zengqiang SI 4 Hefei Hualing Co.
#79 Aaron Michael Stewart 3 Lenovo (Singapore) Pte.
#80 Andrew M. Tenbarge 3 Whirlpool
#81 Arivazhagan Chandrashekaran 3 Amazon
#82 Azuma Kondou 3 Daikin Industries
#83 Bong Su Son 3 Samsung
#84 Brent Alden Junge 3 Haier Us Appliance Solutions
#85 Bryce Kirk Moore 3 Carrier
#86 Carl A. Rupp 3 Snowie
#87 Cetin Abdullah Celik 3 Bsh Hausgeräte Gmbh
#88 Christian Haack 3 Weiss Technik Gmbh
#89 Cholok Han 3 LG
#90 Cory Dale Simpson 3 Electrolux Home Products
#91 Curtis Christian Crane 3 Johnson Controls Technology
#92 Daniel Bassler 3 Bsh Hausgeräte Gmbh
#93 Daekil KANG 3 LG
#94 Dae Hwan Kim 3 Samsung
#95 Daewoong Kim 3 LG
#96 David I. Vega 3 Rheem Manufacturing
#97 Do Yun Jang 3 Samsung
#98 Eiji Kumakura 3 Daikin Industries
#99 Eric J. Dherde 3 Whirlpool
#100 Eric S. Donovan 3 Rolls-Royce North America

Top Companies

Rank ↑ Company ↕ Patents ↕
1 LG 123
2 Whirlpool 54
3 Samsung 52
#4 Mitsubishi Electric 51
#5 Bsh Hausgeräte Gmbh 44
#6 Carrier 40
#7 Haier Us Appliance Solutions 33
#8 Daikin Industries 24
#9 Johnson Controls Technology 19
#10 Trane International 17
#11 Qingdao Haier Joint Stock Co. 16
#12 Electrolux Home Products 15
#13 Heatcraft Refrigeration Products 15
#14 L'Air Liquide, Societe Anonyme Pour L'Etude Et L'Exploitation Des Procedes Georges Claude 15
#15 Denso 12
#16 Midea Group Co. 11
#17 Danfoss A/S 10
#18 Lennox Industries 10
#19 Linde Gmbh 9
#20 Sumitomo Heavy Industries 9
#21 Emerson Climate Technologies 8
#22 Nidec Sankyo 8
#23 Bsh Home Appliances 7
#24 Praxair Technology 7
#25 Rheem Manufacturing 7
#26 Ember Technologies 6
#27 Gree Electric Appliances, Inc. Of Zhuhai 6
#28 Illinois Tool Works 6
#29 ExxonMobil 6
#30 IBM 6
#31 Air Products And Chemicals 5
#32 Fujikoki 5
#33 Haier Smart Home Co. 5
#34 Hefei Hualing Co. 5
#35 Hefei Midea Refrigerator Co. 5
#36 Hill Phoenix 5
#37 Bitzer Kühlmaschinenbau Gmbh 4
#38 Efficient Energy Gmbh 4
#39 Hanon Systems 4
#40 King Abdulaziz University 4
#41 Qingdao Haier Co. 4
#42 Shinwa Controls Co. 4
#43 True Manufacturing Co. 4
#44 Honeywell 4
#45 Panasonic 4
#46 Arcelik Anonim Sirketi 3
#47 Audi Ag 3
#48 City University Of Hong Kong 3
#49 Dometic Sweden Ab 3
#50 Edwards Vacuum 3
#51 Energizer Auto 3
#52 Fluor Technologies 3
#53 Hitachi-Johnson Controls Air Conditioning 3
#54 Rolls-Royce North America 3
#55 Snowie 3
#56 Apple 2
#57 Agc 2
#58 Alltemp Products Company Limited 2
#59 Ambassador Asset Management Limited 2
#60 Battelle Memorial Institute 2
#61 Bcck Holding 2
#62 Booz Allen Hamilton 2
#63 Chart Energy & Chemicals 2
#64 Coway Co. 2
#65 Daewoo Electronics 2
#66 Daikin Europe N.V. 2
#67 Dalian University Of Technology 2
#68 Electrolux Appliances Aktiebolag 2
#69 Emerald Energy Nw 2
#70 Fisher & Paykel Appliances Limited 2
#71 Fujitsu General Limited 2
#72 Gree Electric Appliances (Wuhan) Co. 2
#73 Hamilton Sundstrand 2
#74 Hyundai Motor 2
#75 Ingersoll-Rand Industrial U.S. 2
#76 Kia Motors 2
#77 KFUPM 2
#78 Mahle International Gmbh 2
#79 Mainstream Engineering 2
#80 Mitsubishi Electric Us 2
#81 Mitsubishi Heavy Industries Compressor 2
#82 Pilot Energy Solutions 2
#83 Pratt Retail Specialties 2
#84 Reflect Scientific 2
#85 Rep Ip Ag 2
#86 Saudi Arabian Oil 2
#87 Standex International 2
#88 Sumitomo (Shi) Cryogenics Of America 2
#89 Sustainable Energy Solutions 2
#90 The Boeing 2
#91 Thermo King 2
#92 Tippmann Engineering 2
#93 Toshiba Lifestyle Products & Services 2
#94 Unknown 2
#95 Weiss Technik Gmbh 2
#96 Wuyi University 2
#97 Abb Schweiz Ag 1
#98 Acer Incorporated 1
#99 Air Distribution Technologies Ip 1
#100 Ali Group S.R.L.—Carpigiani 1