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Patent Leaderboard
USPTO Patent Rankings Data through Dec 31, 2025
Home › Technologies › Heating and ventilation

Heating and ventilation Patent Leaders in 2021 2021

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 Shaun B. Atchison 9 Johnson Controls Technology
2 Kirk H. Drees 8 Johnson Controls Technology
3 Rakesh Goel 8 Lennox Industries
#4 Robert D. Turney 8 Johnson Controls Technology
#5 Timothy I. Salsbury 8 Johnson Controls Technology
#6 Yeon-Seob YUN 8 Samsung
#7 David J. Emmons 7 Ademco
#8 Bu Youn Lee 6 Samsung
#9 Chang-Woo Jung 6 Samsung
#10 Hyeong Joon Seo 6 Samsung
#11 Jong Kweon Ha 6 Samsung
#12 John M. House 6 Johnson Controls Technology
#13 Joon Ho Yoon 6 Samsung
#14 Michael J. Wenzel 6 Johnson Controls Technology
#15 Richard W. Cowan 6 Midea Group Co.
#16 Robert J. Mowris 6 —
#17 Shigeki Kamitani 6 Daikin Industries
#18 Theresa N. Gillette 6 Johnson Controls Technology
#19 Young-Hwan Choi 6 Nanokem Co.
#20 Brian D. Rigg 5 Johnson Controls Technology
#21 Christopher Heintzelman 5 Ademco
#22 Do Hoon Kim 5 Samsung
#23 Fumiaki Koike 5 Daikin Industries
#24 Graeme Willmott 5 Johnson Controls Tyco Ip Holdings Llp
#25 Jong Whal Kim 5 Samsung
#26 Joseph R. Ribbich 5 Johnson Controls Technology
#27 John Walsh 5 —
#28 Jung Dae Lee 5 Samsung
#29 Keisuke TOMOMURA 5 Mitsubishi Electric
#30 Kevin A. Weiss 5 Johnson Controls Technology
#31 Matthew J. Asmus 5 Johnson Controls Technology
#32 Mamoru Hamada 5 Mitsubishi Electric
#33 Sung-June Cho 5 Samsung
#34 Sung Jae Kim 5 Hyundai Motor
#35 Tetsuya Tazawa 5 Mitsubishi Electric
#36 Umesh Gokhale 5 Lennox Industries
#37 Won Hee Lee 5 Samsung
#38 Yeonsik Ha 5 LG
#39 Andrew J. Przybylski 4 Johnson Controls Tyco Ip Holdings Llp
#40 Bao Tran 4 Intraaction
#41 Bernard P. Clement 4 Johnson Controls Technology
#42 Christopher R. Jones 4 Ademco
#43 Christopher Merkl 4 Johnson Controls Technology
#44 David Schultz 4 Honeywell
#45 Gary A. Romanowich 4 Johnson Controls Technology
#46 Hayato Horie 4 Mitsubishi Electric
#47 Hiroshi Morimoto 4 Sharp Kabushiki Kaisha
#48 Hyun Joo Jeon 4 LG
#49 Jae Hyoung Sim 4 Samsung
#50 Jeffrey Boll 4 Honeywell
#51 Jozef Boros 4 Rheem Manufacturing
#52 John H. Burroughs 4 Johnson Controls Tyco Ip Holdings Llp
#53 John W. Uerkvitz 4 Johnson Controls Technology
#54 Jun-Ho Hwang 4 Samsung
#55 Karan Garg 4 Johnson Controls Tyco Ip Holdings Llp
#56 Kwon Jin Kim 4 Samsung
#57 Liming Yang 4 Dewertokin Technology Group Co.
#58 Mark Allen 4 7Ac Technologies
#59 Matthew J. Ellis 4 Johnson Controls Tyco Ip Holdings Llp
#60 Manfred Gerber 4 Nortek Air Solutions Canada
#61 Midori Yokoyama 4 Noritz
#62 Mohammad N. Elbsat 4 Johnson Controls Tyco Ip Holdings Llp
#63 Moon Sun Shin 4 Samsung
#64 Neelkanth S. Gupte 4 Carrier
#65 Nikhil Bhogal 4 June Life
#66 Nicholas P. Mislak 4 Johnson Controls Technology
#67 Paul Wacker 4 Honeywell
#68 Per Rosén 4 E.On Sverige Ab
#69 Robert K. Alexander 4 Johnson Controls Technology
#70 Sudhi R. Sinha 4 Johnson Controls Technology
#71 Tae Woo Kim 4 Samsung
#72 Timothy Russell 4 Bsh Home Appliances
#73 Todd R. DeMonte 4 Therma-Stor
#74 Woo Seog Song 4 Samsung
#75 Yasuhiro Suzuki 4 Nissan Motor Co.
#76 Yongfeng Xu 4 Gd Midea Heating & Ventilating Equipment Co.
#77 Amita Brahme 3 Lennox Industries
#78 Anil V. Bhosale 3 Johnson Controls Technology
#79 Andrew R. Fox 3 3M
#80 Andrew Hamilton Hanks 3 Trane International
#81 Aron M. Seiler 3 Johnson Controls Technology
#82 Ayumi Konishi 3 Panasonic
#83 Ben Braden 3 Bsh Home Appliances
#84 Byung Yul So 3 Samsung
#85 Carlos Felipe Alcala Perez 3 —
#86 Carl Nicholas Nett 3 Fulton Group N.A.
#87 Christopher Russell Clark 3 June Life
#88 Chang Sik Lee 3 Samsung
#89 Clifford K. Ho 3 National Technology & Engineering Solutions Of Sandia
#90 Cody J. Kaiser 3 Johnson Controls Technology
#91 Davood Ghadiri Moghaddam 3 Nortek Air Solutions Canada
#92 Daiki Hirawa 3 Daikin Industries
#93 David A. Johnson 3 Cradlepoint
#94 Dave Nyhof 3 Unknown
#95 Dana Charles Stevenson 3 Qc Manufacturing
#96 Daniel J. Trice 3 Midea Group Co.
#97 Daebong Yang 3 LG
#98 Do Yeon Kim 3 Samsung
#99 Dong Yoon Lee 3 Samsung
#100 Dustin Martin Stevenson 3 Qc Manufacturing

Top Companies

Rank ↑ Company ↕ Patents ↕
1 Mitsubishi Electric 84
2 Johnson Controls Technology 78
3 Samsung 57
#4 Daikin Industries 39
#5 LG 38
#6 Lennox Industries 34
#7 Carrier 30
#8 Ademco 29
#9 Johnson Controls Tyco Ip Holdings Llp 23
#10 Haier Us Appliance Solutions 22
#11 Trane International 21
#12 Midea Group Co. 20
#13 Bsh Hausgeräte Gmbh 19
#14 Honeywell 18
#15 Unknown 17
#16 Rheem Manufacturing 16
#17 Whirlpool 16
#18 Panasonic 16
#19 Noritz 13
#20 Bsh Home Appliances 11
#21 Air Distribution Technologies Ip 10
#22 Gd Midea Air-Conditioning Equipment Co. 7
#23 Gree Electric Appliances, Inc. Of Zhuhai 7
#24 IBM 7
#25 3M 6
#26 Electrolux Home Products 6
#27 Hitachi-Johnson Controls Air Conditioning 6
#28 Electrolux Appliances Aktiebolag 5
#29 Emerson Climate Technologies 5
#30 Gd Midea Heating & Ventilating Equipment Co. 5
#31 Grundfos Holding A/S 5
#32 Koniniklijke Philips N.V. 5
#33 Kyungdong Navien Co. 5
#34 Qingdao Haier Air Conditioner General Corp. 5
#35 Rinnai 5
#36 Smc 5
#37 Belimo Holding Ag 4
#38 Broan-Nutone 4
#39 Daikin Europe N.V. 4
#40 E.On Sverige Ab 4
#41 June Life 4
#42 Ningbo Fotile Kitchen Ware Co. 4
#43 Nortek Air Solutions Canada 4
#44 Therma-Stor 4
#45 Alto-Shaam 3
#46 Xiaomi 3
#47 Commercial Energy Saving Plus 3
#48 Copreci, S.Coop. 3
#49 Denso 3
#50 E.G.O. Elektro-Geraetebau Gmbh 3
#51 Emerson Electric 3
#52 Energyhub 3
#53 Fulton Group N.A. 3
#54 Johnson Solid State 3
#55 KFUPM 3
#56 Mitsubishi Electric Home Appliance Co. 3
#57 Mitsubishi Electric Us 3
#58 National Technology & Engineering Solutions Of Sandia 3
#59 Prince Mohammad Bin Fahd University 3
#60 Qc Manufacturing 3
#61 Regal Beloit America 3
#62 Rheem Australia Pty Limited 3
#63 Sharp Kabushiki Kaisha 3
#64 The Boeing 3
#65 Vivint 3
#66 Intel 3
#67 Apple 2
#68 7Ac Technologies 2
#69 Absolicon Solar Collector Ab 2
#70 Alarm.Com Incorporated 2
#71 Alliance For Sustainable Energy 2
#72 Backer Ehp 2
#73 Beijing Smartmi Technology Co. 2
#74 Bleckmann Gmbh & Co. Kg 2
#75 Brown Stove Works 2
#76 Clean Power Research, L.L.C. 2
#77 Dalian University Of Technology 2
#78 Delta T 2
#79 Distech Controls 2
#80 Eberspächer Catem Gmbh & 2
#81 Ecobee 2
#82 Elica S.P.A. 2
#83 Entouch Controls 2
#84 Fimcim S.P.A. 2
#85 Fraunhofer Usa 2
#86 Grand Mate Co. 2
#87 Grid4C 2
#88 Hefei Midea Heating & Ventilating Equipment Co. 2
#89 Hestan Commercial 2
#90 Hitachi 2
#91 Japan Fine Ceramics Center 2
#92 Toyota Industries 2
#93 King Abdulaziz University 2
#94 King Saud University 2
#95 Korea Institute Of Science And Technology 2
#96 Lochinvar 2
#97 Mansfield Engineered Components 2
#98 MIT 2
#99 Mp Global Products, L.L.C. 2
#100 Novinium 2