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Top 100 Fast-growings companies in HVAC
by Most Patent Filing In 3 Years in the United States in 2019

The HVAC top 100 is Discovery PatSnap’ annual ranking of the top 100 Most Patent Filing In 3 Years HVAC Fast-growings in the United States. Discovery has identified the top key players, startups & unicorns, fast-growings, news entrants in 2019, 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
Johnson Controls Technology Co.
Patent: 178
2
Lennox Industries, Inc.
Air conditioning,Computer hardware,Electronics,
...[+2]
Patent: 146
3
Carrier Corp.
Refrigeration,Air conditioning,Mechanical engineering,
...[+2]
Patent: 100
4
Trane International, Inc.
Building management,Automation,Manufacturing engineering,
...[+2]
Patent: 64
5
Honeywell International, Inc.
Aerospace,Electronics,Market research,
...[+2]
Patent: 58
6
DENSO International America, Inc.
Product category
Patent: 51
7
Google LLC
Advertising,Enterprise software,Search engine,
...[+2]
Patent: 34
8
Optimum Energy LLC
Smart meter,Software,Efficient energy use,
...[+2]
Patent: 18
9
K&N Engineering, Inc.
Filter (aquarium),Automotive engineering,Oil filter,
...[+2]
Patent: 17
10
Emerson Electric Co.
Software,Computer hardware,Electronics,
...[+2]
Patent: 16
11
Robert Bosch Corp.
Shopping mall,Truck
Patent: 15
12
Siemens Energy & Automation, Inc.
Electronics,Automation,Electric utility
Patent: 15
13
Emerson Climate Technologies, Inc.
Refrigeration,Air conditioning,Automation,
...[+2]
Patent: 12
14
Polaris Inc.
Electric vehicle,Atazanavir,Public transport,
...[+2]
Patent: 11
15
Toyota Motor Engineering & Manufacturing North America, Inc.
Automotive engineering,Production engineering,Production control,
...[+2]
Patent: 10
16
General Electric Co.
Energy management,Turbine,Electronics,
...[+2]
Patent: 9
17
Valeo Climate Control Corp.
Automotive engineering
Patent: 9
18
Bergstrom, Inc.
Automotive engineering,Public transport,Climate system,
...[+2]
Patent: 8
19
Tesla, Inc.
Electric vehicle,Electronics,Automotive engineering,
...[+2]
Patent: 8
20
Thermo King Corp.
Truck,Supply chain management,Manufacturing engineering,
...[+2]
Patent: 8
21
Vivint, Inc.
Home automation,Internet of Things,Software,
...[+2]
Patent: 8
22
3M Innovative Properties Co.
Intellectual property,Product design
Patent: 8
23
EcoFactor, Inc.
Energy management,Software as a service,Machine learning,
...[+2]
Patent: 8
24
Environmental Dynamics Group, Inc.
Automation,Manufacturing engineering,Industrial engineering,
...[+2]
Patent: 7
25
Valeo North America, Inc.
Automotive software,Automotive engineering
Patent: 7
26
CalsonicKansei North America, Inc.
Automotive engineering
Patent: 7
27
Air International (US), Inc.
Air conditioning,Automation,Manufacturing engineering,
...[+2]
Patent: 7
28
Emerson Digital Cold Chain, Inc.
Energy management,Electronics
Patent: 7
29
View, Inc.
Smart glass
Patent: 6
30
Clean Power Research LLC
Software,Solar energy,Renewable energy system,
...[+2]
Patent: 6
31
Schneider Electric USA, Inc.
Distribution board,Power transmission,Electrical equipment,
...[+2]
Patent: 6
32
Rheem Manufacturing Co.
Air conditioning,Petroleum industry,Solar water heating,
...[+2]
Patent: 6
33
Marelli Cabin Comfort Usa, Inc.
Patent: 6
34
Zoox, Inc.
Robotics,Public transport,Software,
...[+2]
Patent: 6
35
Fluid Handling LLC
Heat exchanger,Automation,Manufacturing engineering,
...[+2]
Patent: 6
36
Dunan Microstaq, Inc.
Power transmission,Energy management,Silicon,
...[+2]
Patent: 6
37
QUALCOMM, Inc.
Telecommunications,Wireless,Mobile device,
...[+2]
Patent: 5
38
CNH Industrial America LLC
Manufacturing engineering,Mechanical engineering,Pulverizer,
...[+2]
Patent: 5
39
Arzel Technology, Inc.
Air conditioning,Automation,Manufacturing engineering,
...[+2]
Patent: 4
40
North Carolina State University
Educational institution,Veterinary medicine,Natural resource,
...[+2]
Patent: 4
41
Key Safety Systems, Inc.
Airbag,Automotive engineering,Manufacturing engineering,
...[+2]
Patent: 4
42
Gentherm, Inc.
Steering wheel,Automotive engineering,Electronics,
...[+2]
Patent: 4
43
Nidec Motor Corp.
Electric motor,Electrical equipment,Electronics,
...[+2]
Patent: 4
44
Fraunhofer USA, Inc.
Applied research,Solar energy
Patent: 4
45
Johns Manville Corp.
Interior design,Construction engineering,Waterproofing,
...[+2]
Patent: 4
46
Blue Leaf I.P., Inc.
Special purpose entity
Patent: 4
47
Toledo Molding & Die, Inc.
Product design,Automotive engineering,3D printing,
...[+2]
Patent: 4
48
The University of Texas at Austin
Undergraduate education,Career development,Association (object-oriented programming),
...[+2]
Patent: 4
49
PACCAR, Inc.
Truck,Automotive engineering,Public transport,
...[+2]
Patent: 4
50
Generac Power Systems, Inc.
Power transmission,Electrical equipment,Electronics,
...[+2]
Patent: 4
51
Regal Beloit Americas, Inc.
Electric motor,Coupling,Electrical equipment,
...[+2]
Patent: 4
52
The University of Texas at Arlington
Library science,Community engagement,Critical thinker,
...[+2]
Patent: 4
53
Best Technologies, Inc.
Semiconductor,Electronic component
Patent: 3
54
Schroff Technologies International, Inc.
Intelligent control,Computer hardware,Electronics,
...[+1]
Patent: 3
55
Griswold Controls
Cartridge,Automation,Manufacturing engineering,
...[+2]
Patent: 3
56
Watsco Ventures LLC
Corporate innovation,Asset management,Venture capital
Patent: 3
57
Alea Labs, Inc.
Energy management,Renewable energy
Patent: 3
58
Grid4C, Inc.
Smart grid,Software,Predictive analytics,
...[+2]
Patent: 3
59
Purdue Research Foundation
Financial asset,Technology transfer,Incubation,
...[+2]
Patent: 3
60
Nano Evaporative Technologies, Inc.
Electricity
Patent: 3
61
Lucid USA, Inc.
Patent: 3
62
Nissan North America, Inc.
Truck,Automotive engineering
Patent: 3
63
OnPower, Inc.
Turbine,Gas turbines,Electronics,
...[+1]
Patent: 2
64
Cooper Technologies Co.
Materials testing,Medicine,Cement
Patent: 2
65
Greenheck Fan Corp.
Control equipment,Fast-moving consumer goods,Electronics,
...[+2]
Patent: 2
66
GridPoint, Inc.
Energy management,Software,Building automation,
...[+2]
Patent: 2
67
Stony Brook University
Public university,Incubator,Accounting,
...[+2]
Patent: 2
68
Enel X North America, Inc.
Energy management,Software,Efficient energy use,
...[+2]
Patent: 2
69
Second Nature Brands, Inc.
Construction engineering
Patent: 2
70
Franklin Control Systems LLC
Starter,Electrical equipment,Electronics
Patent: 2
71
State Farm Mutual Automobile Insurance Co.
Property insurance,Automobile insurance,Disability insurance,
...[+2]
Patent: 2
72
Blue Box Air LLC
Filtration,Automation,Manufacturing engineering,
...[+2]
Patent: 2
73
Hyliion, Inc.
Public transport,Electrification,Greenhouse gas,
...[+2]
Patent: 2
74
Walmart Apollo LLC
Patent: 2
75
Pipe Restoration Technologies LLC
Epoxy,Mining engineering,Natural resource management,
...[+2]
Patent: 2
76
Microsoft Technology Licensing LLC
Franchise agreement
Patent: 2
77
Taco, Inc.
Building automation,Computer hardware,Electronics,
...[+2]
Patent: 2
78
Carbon Lighthouse, Inc.
Carbon,Building automation,Efficient energy use,
...[+2]
Patent: 2
79
Savant Systems LLC
Software,Home automation,Computer hardware,
...[+2]
Patent: 2
80
ConnectM Technology Solutions, Inc.
Air conditioning,Software,Indoor air quality
Patent: 2
81
The Research Foundation of The State University of New York
Asset management
Patent: 2
82
Walmart Labs
E-commerce,Mobile device,Categorization,
...[+2]
Patent: 2
83
Cummins, Inc.
Electric vehicle,Natural gas,Petroleum industry,
...[+2]
Patent: 2
84
Heatcraft Refrigeration Products LLC
Refrigeration,Automation,Manufacturing engineering,
...[+2]
Patent: 2
85
Mitsubishi Electric Research Laboratories, Inc.
Mechatronics,Computer vision,Algorithm,
...[+1]
Patent: 2
86
Fieldpiece Instruments, Inc.
Ventilation (architecture),Technician,Computer hardware,
...[+2]
Patent: 2
87
Evergreen Telemetry LLC
Patent: 2
88
Majormega LLC
Environmental effect,Software,Virtual reality
Patent: 2
89
CrowdComfort, Inc.
Heat map,Software as a service,Mobile device,
...[+2]
Patent: 2
90
Baker Engineering & Risk Consultants, Inc.
Software,Process safety,Risk management
Patent: 2
91
Anacove LLC
Information technology consulting
Patent: 2
92
Board of Regents of The University of Oklahoma
Radio broadcasting station,Radio broadcasting,Broadcasting
Patent: 2
93
DClimate, Inc.
Auxiliary power unit
Patent: 2
94
enVerid Systems, Inc.
Air conditioning,Energy storage,Energy management,
...[+2]
Patent: 2
95
FCA US LLC
Automotive engineering,Spark plug,Turbocharger,
...[+2]
Patent: 2
96
Rectorseal LLC
Sealant,Fire protection,Industrial engineering,
...[+2]
Patent: 2
97
Boston University
Law library,Medicine,Cephalosporin,
...[+2]
Patent: 2
98
Compass Datacenters LLC
Data center,Protocol data unit,Software,
...[+2]
Patent: 2
99
Innovative Climatic Technologies Corp.
Automation,Manufacturing engineering,Industrial engineering,
...[+2]
Patent: 1
100
The Boeing Co.
Aerospace,Satellite,National security,
...[+2]
Patent: 1
Page generation time: Jun 25 2025