Patent Leaderboard
USPTO Patent Rankings Data through Dec 31, 2025
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Heating and ventilation Patent Leaders in 2022 2022

Primary CPC class F24 · 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 1,516 patents in 2023.peak 1,5161996: 366 patents19961997: 364 patents1998: 474 patents1999: 542 patents19992000: 521 patents2001: 553 patents2002: 458 patents20022003: 445 patents2004: 444 patents2005: 415 patents20052006: 427 patents2007: 359 patents2008: 313 patents20082009: 311 patents2010: 468 patents2011: 470 patents20112012: 576 patents2013: 635 patents2014: 832 patents20142015: 916 patents2016: 903 patents2017: 1,100 patents20172018: 1,229 patents2019: 1,459 patents2020: 1,491 patents20202021: 1,415 patents2022: 1,460 patents2023: 1,516 patents20232024: 1,496 patents2025: 1,486 patents2025

Top Inventors

Rank ↑ Inventor ↕ Patents ↕ Primary Company ↕
1 Kirk H. Drees 11 Johnson Controls Technology
2 Shaun B. Atchison 9 Johnson Controls Technology
3 Kimitaka KADOWAKI 8 Mitsubishi Electric
#4 Mohammad N. Elbsat 8 Johnson Controls Tyco Ip Holdings Llp
#5 Paul Bryan Cadima 8 Haier Us Appliance Solutions
#6 Michael J. Wenzel 7 Johnson Controls Technology
#7 Naofumi Takenaka 7 Mitsubishi Electric
#8 Raheel A. Chaudhry 7 Rheem Manufacturing
#9 Rakesh Goel 7 Lennox Industries
#10 Richard W. Cowan 7 Midea Group Co.
#11 Robert D. Turney 7 Johnson Controls Technology
#12 Brian C. Donnelly 6 Suncast Technologies
#13 Brian D. Rigg 6 Johnson Controls Technology
#14 Doyong Ha 6 LG
#15 Hansaem Park 6 LG
#16 Janghee Park 6 LG
#17 Jusu Kim 6 LG
#18 Nikhil Bhogal 6 June Life
#19 Ryan P. Lundberg 6 Weber-Stephen Products
#20 Shaojiang Cheng 6 Qingdao Haier Air-Conditioning Electronic Co.
#21 Theresa N. Gillette 6 Johnson Controls Technology
#22 Yongki Jeong 6 LG
#23 Yuji Motomura 6 Mitsubishi Electric
#24 Zhigang Xing 6 Gd Midea Air-Conditioning Equipment Co.
#25 Bin Shi 5 Qingdao Haier Air-Conditioning Electronic Co.
#26 Brennan H. Fentzlaff 5 Johnson Controls Tyco Ip Holdings Llp
#27 Christopher Russell Clark 5 June Life
#28 Chang-Woo Jung 5 Samsung
#29 David J. Emmons 5 Ademco
#30 Eric Scott Johnson 5 The Procter & Gamble
#31 Ian Dempster 5 Optimum Energy Co
#32 Jie Tang 5 Tsinghua University
#33 Matthew Van Horn 5 June Life
#34 Piyush Porwal 5 Rheem Manufacturing
#35 Ravishankar Sivalingam 5 June Life
#36 Seunghoon Park 5 Samsung
#37 Sudhi R. Sinha 5 Johnson Controls Technology
#38 Yeonsik Ha 5 LG
#39 Youichi HANDA 5 Daikin Industries
#40 Youssef A. Jaber 5 Trane International
#41 Yongcheol Sa 5 LG
#42 Zhisheng LEI 5 Gd Midea Air-Conditioning Equipment Co.
#43 Anas W. I. Alanqar 4 Johnson Controls Tyco Ip Holdings Llp
#44 Andrew M. Boyd 4 Johnson Controls Tyco Ip Holdings Llp
#45 Baitian Zhuo 4 Qingdao Haier Air-Conditioning Electronic Co.
#46 Brian R. Butler 4 Emerson Climate Technologies
#47 David Eckhardt 4 Weber-Stephen Products
#48 Dana Charles Stevenson 4 Qc Manufacturing
#49 Gary A. Minor 4 Air Distribution Technologies Ip
#50 Hans Juergen Paller 4 Haier Us Appliance Solutions
#51 Hai Yang 4 CNRS
#52 Hung M. Pham 4 Emerson Climate Technologies
#53 Ian McIver 4 Bsh Hausgeräte Gmbh
#54 Jei Min Choi 4 Samsung
#55 Jin-Gyun Kim 4 Samsung
#56 Jongkeon Jeon 4 LG
#57 Juyoun Lee 4 LG
#58 Jun Kyu Park 4 Kyungdong Navien Co.
#59 Jun Wang 4 Qingdao Haier Air-Conditioning Electronic Co.
#60 Keita KITAGAWA 4 Daikin Industries
#61 Kuifang Zou 4 Gd Midea Air-Conditioning Equipment Co.
#62 Liangrui CHEN 4 Gd Midea Air-Conditioning Equipment Co.
#63 Lin Yang 4 Western Digital Technologies
#64 Meibing Xiong 4 Gd Midea Heating & Ventilating Equipment Co.
#65 Misun Song 4 LG
#66 Nathan Carlson 4 Ademco
#67 Naotoshi FUJITA 4 Daikin Industries
#68 Naoyuki Funada 4 Panasonic
#69 Naoya Matsunaga 4 Mitsubishi Electric
#70 Nagasree Poluri 4 Honeywell
#71 Neelkanth S. Gupte 4 Carrier
#72 Payam Delgoshaei 4 Lennox Industries
#73 Patrick J. Duffy 4 Whirlpool
#74 Paul Goodjohn 4 Haier Us Appliance Solutions
#75 Qiang Qin 4 Gd Midea Air-Conditioning Equipment Co.
#76 Ricardo Delgado-Nanez 4 Apple
#77 Robert Scott Donarski 4 Whirlpool
#78 Robert P. Scaringe 4 Mainstream Engineering
#79 Ruigang Zhang 4 Toyota
#80 Ryan M. Perkinson 4 Air Distribution Technologies Ip
#81 Seung Won Oh 4 Samsung
#82 Shilin Qiu 4 Midea Group Co.
#83 Sivaprasad Akasam 4 Intel
#84 Sridhar Deivasigamani 4 Intel
#85 Stuart Morgan 4 Digital Equipment
#86 Sung Jae Kim 4 Hyundai Motor
#87 Tatsuo Furuta 4 Canon
#88 Thomas D. Chase 4 Johnson Controls Tyco Ip Holdings Llp
#89 Tieying Ye 4 Gree Electric Appliances, Inc. Of Zhuhai
#90 Todd R. DeMonte 4 Therma-Stor
#91 Umesh Gokhale 4 Lennox Industries
#92 Weon Seok Choi 4 Samsung
#93 Wencan Wang 4 Gree Electric Appliances, Inc. Of Zhuhai
#94 Weiyou Yu 4 Gree Electric Appliances, Inc. Of Zhuhai
#95 Wontae Kim 4 Samsung
#96 Yeon-Seob YUN 4 Samsung
#97 Youngchoon Park 4 Johnson Controls Technology
#98 Yongfeng Xu 4 Gd Midea Heating & Ventilating Equipment Co.
#99 Yu Liu 4 Gd Midea Air-Conditioning Equipment Co.
#100 Adam Myre 3 Ademco

Top Companies

Rank ↑ Company ↕ Patents ↕
1 Mitsubishi Electric 86
2 LG 78
3 Johnson Controls Tyco Ip Holdings Llp 68
#4 Daikin Industries 58
#5 Samsung 47
#6 Haier Us Appliance Solutions 36
#7 Midea Group Co. 36
#8 Lennox Industries 28
#9 Rheem Manufacturing 28
#10 Gd Midea Air-Conditioning Equipment Co. 25
#11 Carrier 23
#12 Johnson Controls Technology 23
#13 Whirlpool 22
#14 Ademco 20
#15 Trane International 20
#16 Bsh Hausgeräte Gmbh 19
#17 Gree Electric Appliances, Inc. Of Zhuhai 19
#18 Noritz 15
#19 Honeywell 13
#20 Panasonic 13
#21 Bsh Home Appliances 11
#22 Haier Smart Home Co. 11
#23 Qingdao Haier Air-Conditioning Electronic Co. 11
#24 Air Distribution Technologies Ip 10
#25 Unknown 9
#26 Emerson Electric 8
#27 Gree Electric Appliances (Wuhan) Co. 8
#28 Kyungdong Navien Co. 8
#29 Alarm.Com Incorporated 7
#30 Broan-Nutone 7
#31 Apple 6
#32 Belimo Holding Ag 6
#33 Gd Midea Heating & Ventilating Equipment Co. 6
#34 Haler Us Appliance Solutions 6
#35 June Life 6
#36 Weber-Stephen Products 6
#37 Electrolux Appliances Aktiebolag 5
#38 Emerson Climate Technologies 5
#39 Gas Technology Institute 5
#40 Rinnai 5
#41 Rinnai America 5
#42 Sharp Kabushiki Kaisha 5
#43 Therma-Stor 5
#44 Captive-Aire Systems 4
#45 Computime Limited 4
#46 Illinois Tool Works 4
#47 KFUPM 4
#48 Ningbo Fotile Kitchen Ware Co. 4
#49 Optimum Energy Co 4
#50 Qc Manufacturing 4
#51 Qingdao Haier Air Conditioner General Corp. 4
#52 Robert Bosch Gmbh 4
#53 Solo Brands 4
#54 Intel 4
#55 Anderson Industrial 3
#56 Daikin Europe N.V. 3
#57 Ebm-Papst Mulfingen 3
#58 Electrolux Home Products 3
#59 E.On Sverige Ab 3
#60 Fujitsu General Limited 3
#61 Grundfos Holding A/S 3
#62 Here Global B.V. 3
#63 Koniniklijke Philips N.V. 3
#64 Mainstream Engineering 3
#65 Mitsubishi Electric Us 3
#66 New Widetech Industries Co. 3
#67 Regal Beloit America 3
#68 Rite-Hite Holding 3
#69 Siemens Industry 3
#70 Siemens Schweiz Ag 3
#71 Smc 3
#72 Tsinghua University 3
#73 Uchicago Argonne 3
#74 Vornado Air 3
#75 Google 3
#76 3M 2
#77 Amazon 2
#78 B/E Aerospace 2
#79 Bleckmann Gmbh & Co. Kg 2
#80 Blender Products 2
#81 Channel Products 2
#82 Dell Products 2
#83 Delta T 2
#84 Denso 2
#85 Denso International America 2
#86 Denso Wave Incorporated 2
#87 Desert Aire 2
#88 Distech Controls 2
#89 Dri-Steem 2
#90 Enerallies 2
#91 Fujikin Incorporated 2
#92 Fujitsu Limited 2
#93 Giant Factories 2
#94 Goodman Manufacturing Company 2
#95 Goodrich 2
#96 Hitachi Industrial Equipment Systems Co. 2
#97 Hitachi-Johnson Controls Air Conditioning 2
#98 Integrated Energy Services 2
#99 Jiangmen Keye Electric Appliances Manufacturing Co. 2
#100 Jmatek (Zhongshan) 2