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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 2023 2023

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 Igor Vaisman 20 Booz Allen Hamilton
2 Joshua Peters 20 Booz Allen Hamilton
3 Abhay Naik 17 Whirlpool
#4 Donghoon Lee 15 LG
#5 Wookyong Lee 14 LG
#6 Deokhyun Youn 13 LG
#7 Wonyeong Jung 13 LG
#8 Seungseob Yeom 12 LG
#9 Shitong Zha 12 Heatcraft Refrigeration Products
#10 Daewoong Kim 11 LG
#11 Kevin Knatt 9 True Manufacturing Co.
#12 Lynne F. Hunter 8 Whirlpool
#13 Sunggyun Son 8 LG
#14 Yonghyun KIM 8 LG
#15 Jinil HONG 7 LG
#16 Jin Jeong 7 Samsung
#17 Junsoo Han 7 LG
#18 Kyungseok Kim 7 LG
#19 Minkyu Oh 7 LG
#20 Seunguk Ahn 7 LG
#21 Stephanos Kyriacou 7 Haier Us Appliance Solutions
#22 Yongjun Bae 7 LG
#23 Arunkumar Harikrishnasamy 6 Whirlpool
#24 Chongyoung Park 6 LG
#25 Eunjun Cho 6 LG
#26 Hyeunsik NAM 6 LG
#27 Sai B. Krishna 6 Whirlpool
#28 Sangmyung Lee 6 LG
#29 Sanjesh Kumar Pathak 6 Whirlpool
#30 Sanket Vivek Phalak 6 Whirlpool
#31 Aaron Michael Stewart 5 Lenovo (Singapore) Pte.
#32 Charbel Rahhal 5 Carrier
#33 Eckhard Achim Groll 5 Purdue Research Foundation
#34 Kook Jeong Seo 5 Samsung
#35 Kwanghyun Choi 5 LG
#36 Masaaki Takegami 5 Daikin Industries
#37 Min Wu 5 Wuyi University
#38 Mingyao Xu 5 Sumitomo Heavy Industries
#39 Myungjin Chung 5 LG
#40 Thomas W. McCollough 5 Electrolux Home Products
#41 Bongjin Kim 4 LG
#42 Brian R. Butler 4 Emerson Climate Technologies
#43 Cholok Han 4 LG
#44 Curtis Christian Crane 4 Johnson Controls Technology
#45 Daekil KANG 4 LG
#46 Davide Ziviani 4 Purdue Research Foundation
#47 Giseok Seong 4 LG
#48 Hongsik Kwon 4 LG
#49 Hyunji PARK 4 LG
#50 Jacob Swain 4 Booz Allen Hamilton
#51 Jeongwon Park 4 LG
#52 Ji Wu 4 Shenzhen Brighter Lighting Co.
#53 Kaveh Khalili 4 Rocky Research
#54 Michael Goodman Schroeder 4 Haier Us Appliance Solutions
#55 Michael A. Stark 4 Carrier
#56 Paul B. Allard 4 Whirlpool
#57 Parmesh Verma 4 Carrier
#58 Prashantagouda Hosamani 4 Bsh Hausgeräte Gmbh
#59 Rahul Subhash Chhajed 4 Whirlpool
#60 Rakesh Goel 4 Lennox Industries
#61 Robert Stahl 4 Bsh Hausgeräte Gmbh
#62 Seonwoo Choi 4 LG
#63 Shuichi Taguchi 4 Daikin Industries
#64 Sivakumar Gopalnarayanan 4 Rheem Manufacturing
#65 Siddarth Rajan 4 Lennox Industries
#66 Uwe Rockenfeller 4 Rocky Research
#67 Yang Gu 4 Samsung
#68 Yang Zou 4 Honeywell
#69 Yijia Wu 4 Wuyi University
#70 Younseok Lee 4 LG
#71 Zhuochen Shi 4 Electrolux Home Products
#72 Akihiro Ito 3 Ckd
#73 Alain Briglia 3 L'Air Liquide, Societe Anonyme Pour L'Etude Et L'Exploitation Des Procedes Georges Claude
#74 Alexander Nancekievill 3 NVIDIA
#75 Andrew M. Welch 3 Copeland Lp
#76 Arsen Avakian 3 Cooler Screens
#77 Augusto Zimmermann 3 Heatcraft Refrigeration Products
#78 Boan Kwon 3 LG
#79 Calin Roatis 3 Triteq Lock And Security
#80 Cemalettin Hasturk 3 Bsh Hausgeräte Gmbh
#81 Charles A. Cluff 3 Carrier
#82 Choon Jae Ryu 3 Haier Us Appliance Solutions
#83 Curt Cayemberg 3 Manitowoc Foodservice Companies
#84 Curtis A. Trammell 3 Johnson Controls Tyco Ip Holdings Llp
#85 David A. ALFANO 3 Emerson Climate Technologies
#86 David Ladd 3 Bechtel Energy Technologies & Solutions
#87 Derek Brasuell 3 Rheem Manufacturing
#88 Devidas B. Raskar 3 Whirlpool
#89 Douglas A. Ducote, Jr. 3 Chart Energy & Chemicals
#90 Dongyeong Kim 3 Samsung
#91 Dongseok Kim 3 LG
#92 Eric Berg 3 Lennox Industries
#93 Eric Scalf 3 Midea Group Co.
#94 Fritz Pierre, Jr. 3 ExxonMobil
#95 Guangwei Chen 3 Wuyi University
#96 Haiping Ding 3 Carrier
#97 Henrik Pape 3 Reddy Ice
#98 Hyungkyu Park 3 LG
#99 Ibrahim Tugrul Soenmez 3 Bsh Hausgeräte Gmbh
#100 Insun Yeo 3 LG

Top Companies

Rank ↑ Company ↕ Patents ↕
1 LG 173
2 Whirlpool 76
3 Carrier 55
#4 Samsung 47
#5 Haier Us Appliance Solutions 31
#6 Bsh Hausgeräte Gmbh 30
#7 Mitsubishi Electric 23
#8 Daikin Industries 21
#9 Electrolux Home Products 21
#10 Booz Allen Hamilton 20
#11 Johnson Controls Tyco Ip Holdings Llp 19
#12 L'Air Liquide, Societe Anonyme Pour L'Etude Et L'Exploitation Des Procedes Georges Claude 16
#13 Heatcraft Refrigeration Products 15
#14 Lennox Industries 13
#15 Rheem Manufacturing 13
#16 Hill Phoenix 11
#17 Sumitomo Heavy Industries 11
#18 Trane International 10
#19 True Manufacturing Co. 10
#20 Emerson Climate Technologies 8
#21 Haier Smart Home Co. 8
#22 ExxonMobil 8
#23 Midea Group Co. 7
#24 Unknown 7
#25 Gree Electric Appliances, Inc. Of Zhuhai 6
#26 Wuyi University 5
#27 Air Products And Chemicals 4
#28 Bsh Home Appliances 4
#29 Chart Energy & Chemicals 4
#30 Dometic Sweden Ab 4
#31 Hamilton Sundstrand 4
#32 Praxair Technology 4
#33 Purdue Research Foundation 4
#34 Rocky Research 4
#35 Asymptote 3
#36 Baidu Usa 3
#37 Bechtel Energy Technologies & Solutions 3
#38 Bitzer Kühlmaschinenbau Gmbh 3
#39 Cooler Screens 3
#40 Copeland Lp 3
#41 Danfoss A/S 3
#42 Denso 3
#43 Ebara Refrigeration Equipment & Systems Co. 3
#44 Enflex 3
#45 Hefei Hualing Co. 3
#46 Hefei Midea Refrigerator Co. 3
#47 Nec 3
#48 Qingdao Haier Refrigerator Co. 3
#49 Reddy Ice 3
#50 Rolls-Royce North America 3
#51 Sumitomo (Shi) Cryogenics Of America 3
#52 Triteq Lock And Security 3
#53 Viking Range 3
#54 IBM 3
#55 Ambassador Asset Management Limited 2
#56 Battelle Memorial Institute 2
#57 Bcck Holding 2
#58 B/E Aerospace 2
#59 Beijing Baidu Netcom Science Technology Co. 2
#60 Blue Quench 2
#61 Ckd 2
#62 Delta Electronics 2
#63 Denso International America 2
#64 Ebara 2
#65 Efficient Energy Gmbh 2
#66 Electrolux Do Brasil S.A. 2
#67 Emerald Energy Nw 2
#68 Evapco 2
#69 Gobi Technologies 2
#70 Heat X 2
#71 Hisense Ronshen (Guangdong) Refrigerator Co. 2
#72 Illinois Tool Works 2
#73 Intirion 2
#74 Japan Superconductor Technology 2
#75 Johnson Controls Technology 2
#76 Kawasaki 2
#77 Korea University Research And Business Foundation 2
#78 Linde Gmbh 2
#79 Lineage Logistics 2
#80 Messer Industries Usa 2
#81 Mitsubishi Heavy Industries Compressor 2
#82 National Cheng Kung University 2
#83 Northrop Grumman 2
#84 Phillips Petroleum 2
#85 Qingdao Haier Air-Conditioning Electronic Co. 2
#86 Rep Ip Ag 2
#87 Saudi Arabian Oil 2
#88 Solvcor Technologies 2
#89 Standex International 2
#90 Te Technology 2
#91 Thermo King 2
#92 Tokyo Electron Limited 2
#93 Tsinghua University 2
#94 Uop 2
#95 Vahterus Oy 2
#96 Vesture 2
#97 Yazaki Energy System 2
#98 Zhejiang Sanhua Intelligent Controls Co. 2
#99 Intel 2
#100 Panasonic 2