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Top 100 Fast-growings companies in HVAC
by Most Patent Filing In 1 Year in the world in 2021

The HVAC top 100 is Discovery PatSnap’ annual ranking of the top 100 Most Patent Filing In 1 Year HVAC Fast-growings in the world. Discovery has identified the top key players, startups & unicorns, fast-growings, news entrants in 2021, ranking from differnt perspectives, including patent filing intensity, academic research capability, news media heat. The company list is generated from various data types.
Heating, ventilation, and air conditioning (HVAC) is the technology of indoor and vehicular environmental comfort. Its goal is to provide thermal comfort and acceptable indoor air quality. HVAC system design is a subdiscipline of mechanical engineering, based on the principles of thermodynamics, fluid mechanics and heat transfer. "Refrigeration" is sometimes added to the field's abbreviation, as HVAC&R or HVACR or "ventilation" is dropped, as in HACR (as in the designation of HACR-rated circuit breakers).
#
Company Name
Region
Tech Topics
Total
1
Lennox Industries, Inc.
Air conditioning,Computer hardware,Electronics,
...[+2]
Patent: 59
2
Carrier Corp.
Refrigeration,Air conditioning,Mechanical engineering,
...[+2]
Patent: 14
3
Honeywell International, Inc.
Aerospace,Electronics,Market research,
...[+2]
Patent: 12
4
Trane International, Inc.
Building management,Automation,Manufacturing engineering,
...[+2]
Patent: 12
5
Goodman Global Group, Inc.
HVAC,Automation,Manufacturing engineering,
...[+2]
Patent: 12
6
Hyundai Motor Co., Ltd.
Public transport,Automotive engineering,Truck,
...[+2]
Patent: 12
7
Johnson Controls Technology Co.
Patent: 10
8
DENSO International America, Inc.
Product category
Patent: 9
9
Ademco, Inc.
NJ, US
Security alarm
Patent: 9
10
Kia Corp.
Customer expectation,Automotive engineering,Public transport,
...[+2]
Patent: 9
11
Ford Motor Co. A/S
Denmark
Patent: 7
12
China Construction Fifth Engineering Division Corp. Ltd.
Real estate development
Patent: 6
13
BELIMO Holding AG
Zürich, Switzerland
Actuator,Air conditioning,Electronics,
...[+2]
Patent: 6
14
Veev Group, Inc.
Real estate development,Construction engineering,Cybercrime,
...[+2]
Patent: 5
15
View, Inc.
Smart glass
Patent: 5
16
Goodman Manufacturing Co. LP
Air conditioning,Heat pump,Automation,
...[+2]
Patent: 4
17
DAIKIN INDUSTRIES Ltd.
Osaka, Japan
Air conditioning,Refrigeration,Mechanical engineering,
...[+2]
Patent: 4
18
Siemens Energy & Automation, Inc.
Electronics,Automation,Electric utility
Patent: 4
19
Omachron Intellectual Property, Inc.
Ontario, Canada
Patent: 4
20
South Air International Co., Ltd.
Patent: 4
21
The First Co. of China Eighth Engineering Bureau Ltd.
Facilities engineering,Construction engineering,Electrical installation
Patent: 4
22
Daikin Airconditioning France SAS
Osaka, Japan
Industrial engineering,Fluorochemical industry,Air conditioning,
...[+1]
Patent: 4
23
Chery Automobile Co., Ltd.
Pinyin,Automotive engineering,Electric vehicle,
...[+2]
Patent: 4
24
Guangxi University for Nationalities
Ethnology,Foreign language,Mathematics,
...[+2]
Patent: 3
25
Ebtron, Inc.
Manufacturing process,Electronics,Power transmission
Patent: 3
26
Thermo King Corp.
Truck,Supply chain management,Manufacturing engineering,
...[+2]
Patent: 3
27
Knorr Brake Co. LLC
Rapid transit,Brake,Public transport,
...[+2]
Patent: 3
28
EnTouch Controls, Inc.
Energy management,Energy management system,Cloud computing,
...[+2]
Patent: 3
29
3M Innovative Properties Co.
Intellectual property,Product design
Patent: 3
30
Hollingsworth & Vose GmbH & Co. KG
Filtration,Cellulose,Textile (markup language)
Patent: 3
31
G.M. Srl
Vicenza, Italy
Chemical engineering
Patent: 3
32
Xi'an Jiaotong University
Materials science,Computer science,Composite material,
...[+2]
Patent: 2
33
McMaster University
Ontario, Canada
Social science,Medicine,Biopharmaceutical,
...[+2]
Patent: 2
34
Ningbo Tuopu Group Co., Ltd.
Vacuum pump,Chassis,Automotive engineering,
...[+2]
Patent: 2
35
Wuhan University of Science & Technology
Materials science,Metallurgy,Computer science,
...[+2]
Patent: 2
36
Dometic Sweden AB
Sweden
Patent: 2
37
Chery Commercial Vehicle (Anhui) Co. Ltd.
Welding,Coating,Automotive engineering
Patent: 2
38
Postech Academy - Industry Foundation
Patent: 2
39
Johnson Controls Building Equipment Technology Wuxi Co. Ltd.
Patent: 2
40
Rivian Holdings LLC
Electric vehicle
Patent: 2
41
Danfoss A/S
Syddanmark, Denmark
Air conditioning,Solenoid,Electric motor,
...[+2]
Patent: 2
42
Scientific Environmental Design, Inc.
NC, US
Environmental design,Design technology,Information technology consulting
Patent: 2
43
Heatcraft Refrigeration Products LLC
Refrigeration,Automation,Manufacturing engineering,
...[+2]
Patent: 2
44
Rifeng Enterprise Group Co., Ltd.
Patent: 2
45
Rite-Hite Holding Corp.
Shutter,Safety barrier,Industrial fan,
...[+2]
Patent: 2
46
Koninklijke Fabriek Inventum BV
Utrecht, Netherlands
National security,Aerospace
Patent: 2
47
Tata Consultancy Services Ltd.
Maharashtra, India
Information technology consulting,Systems design,Certainty,
...[+2]
Patent: 2
48
Nanjing University of Posts & Telecommunications
Pinyin,Power semiconductor device,System on a chip,
...[+2]
Patent: 2
49
Rifeng Technology Co. Ltd.
Patent: 2
50
Powerchina Huadong Engineering Corp. Ltd.
Industrial engineering,Offshore wind power,Wind power,
...[+1]
Patent: 2
51
Clean Power Research LLC
Software,Solar energy,Renewable energy system,
...[+2]
Patent: 2
52
Emerson Electric Co.
Software,Computer hardware,Electronics,
...[+2]
Patent: 2
53
International Truck Intellectual Property Co. LLC
IL, US
Intellectual property,Automotive engineering,Truck
Patent: 2
54
Fluid Handling LLC
Heat exchanger,Automation,Manufacturing engineering,
...[+2]
Patent: 2
55
Marmon/Keystone LLC
Metal
Patent: 2
56
International Environmental Corp.
Semiconductor,Electronic component
Patent: 2
57
Belenos Clean Power Holding AG
Neuchâtel, Switzerland
Solid-state battery,Solar energy harvesting
Patent: 2
58
Politechnika Gdanska
Pomorskie, Poland
Polish,Nanotechnology,Visualization
Patent: 2
59
Gree Electric Appliances, Inc. of Zhuhai
Electronics,Conditioners,Air conditioning,
...[+2]
Patent: 2
60
Guangdong Power Grid Co. Ltd.
Patent: 2
61
Trolex Corp
Air conditioning,Refrigeration
Patent: 1
62
Diversitech, Inc.
Construction engineering,Computational mechanics,Modeling and simulation,
...[+2]
Patent: 1
63
NARI Technology Co., Ltd.
Automation,Power transmission,Plug in hybrid electric vehicle,
...[+2]
Patent: 1
64
China Southern Power Grid Co., Ltd.
Power transmission,Electric power transmission,Power grid,
...[+2]
Patent: 1
65
Tongji University
Artificial intelligence,Pinyin,Structural engineering,
...[+2]
Patent: 1
66
Air Diffusion Agencies Pty Ltd.
Australia
Patent: 1
67
Jaguar Land Rover Ltd.
Coventry, United Kingdom
Four-wheel drive,Automotive engineering,New Car Assessment Program,
...[+1]
Patent: 1
68
Great Wall Motor Co., Ltd.
HAVAL,Sport utility vehicle,Automotive engineering,
...[+2]
Patent: 1
69
Harbin University of Commerce
Pinyin,Chemistry,Computer science,
...[+2]
Patent: 1
70
Xia Zhou
Patent: 1
71
Liaoning Provincial Building Design & Research Institute
Patent: 1
72
Xuzhou Xugong Automobile Manufacturing Co., Ltd.
Patent: 1
73
Vigilent Corp.
Energy management,Machine learning,Data center,
...[+2]
Patent: 1
74
Shenyang Jianzhu University
Structural engineering,Materials science,Composite material,
...[+2]
Patent: 1
75
My Mechanical Cloud LLC
Patent: 1
76
Southeast University
Mechanical engineering,Molecular beam epitaxy,Retinitis,
...[+2]
Patent: 1
77
Evergreen UV LLC
Bulb,Electronics
Patent: 1
78
Bomesc Offshore Engineering Co., Ltd.
Petroleum industry,Construction engineering,Mining engineering,
...[+2]
Patent: 1
79
China National Petroleum Corp.
Natural gas,Petroleum industry,Renewable energy,
...[+2]
Patent: 1
80
Triatomic Environmental, Inc.
FL, US
Automation,Manufacturing engineering,Industrial engineering,
...[+2]
Patent: 1
81
Flow Energy, Inc.
Electricity,Renewable energy
Patent: 1
82
Huaneng Group Technology Innovation Center
Patent: 1
83
Ran Fang Chen
Patent: 1
84
Zentek Ltd.
Ontario, Canada
Graphite,Mining engineering,Graphene,
...[+2]
Patent: 1
85
Taiyuan University of Technology
Pinyin,Materials science,Chemistry,
...[+2]
Patent: 1
86
Shenzhen General Institute of Architectural Design & Research
Patent: 1
87
Syracuse University
Library science,Work ethic,Psychology,
...[+2]
Patent: 1
88
Valeo North America, Inc.
Automotive software,Automotive engineering
Patent: 1
89
Hyundai IHL Co., Ltd.
Bulb
Patent: 1
90
Johnson Controls Air-Conditioning & Refrigeration Wuxi Co. Ltd
Patent: 1
91
Zhengzhou Kelin Motor Vehicle Air Conditioning Co., Ltd.
Patent: 1
92
State Grid Electric Power Research Inst Wuhan Nanrui Co. Ltd.
Automation,Mechanical engineering,Manufacturing engineering,
...[+1]
Patent: 1
93
Senseair AB
Sweden
Outdoor air quality,Alcohol,Molecular sensor,
...[+2]
Patent: 1
94
Central South University
Metallurgy,Solid-state battery,Lithium-ion battery,
...[+2]
Patent: 1
95
East China Jiaotong University
Computer science,Materials science,Mathematics,
...[+2]
Patent: 1
96
Qingdao Tengyuan Design Firm Co., Ltd.
Patent: 1
97
University of Shanghai for Science & Technology
Medical school,Engineering education,Internationalization,
...[+2]
Patent: 1
98
Polaris Inc.
Electric vehicle,Atazanavir,Public transport,
...[+2]
Patent: 1
99
UT-Battelle LLC
Oak Ridge National Laboratory,Health care
Patent: 1
100
NEXTracker, Inc.
Solar power,Solar energy,Renewable energy,
...[+2]
Patent: 1
Page generation time: Jun 12 2025