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Top 100 Key Players companies in HVAC
by Highest Patent Value in the United States in 2021

The HVAC top 100 is Discovery PatSnap’ annual ranking of the top 100 Highest Patent Value HVAC Key Players in the United States. 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
Lutron Electronics Co., Inc.
Electronics,Dimmer,Control system,
...[+2]
Avg patent value: 5.11 M
2
Allure Energy, Inc.
Smart grid,Demand response,Electricity pricing,
...[+2]
Avg patent value: 5.05 M
3
Google LLC
Advertising,Enterprise software,Search engine,
...[+2]
Avg patent value: 5.00 M
4
Haier US Appliance Solutions, Inc.
Electronics,Demand response,Fixture,
...[+2]
Avg patent value: 4.37 M
5
JPMorgan Chase & Co.
Investment banking,Prime brokerage,Financial institution,
...[+2]
Avg patent value: 3.99 M
6
Donaldson Co., Inc.
Filtration,Filter (aquarium),Industrial engineering,
...[+2]
Avg patent value: 3.91 M
7
Global Plasma Solutions, Inc.
Ionization,Electronics,Refrigeration,
...[+2]
Avg patent value: 3.55 M
8
Daikin Applied Americas, Inc.
Chiller,Air conditioning,Fast-moving consumer goods,
...[+2]
Avg patent value: 3.54 M
9
Freight Farms, Inc.
Agriculture,Crop,Hydroponics,
...[+2]
Avg patent value: 3.53 M
10
Hall Labs LLC
Economic system,Product design,Financial management
Avg patent value: 3.47 M
11
Franklin Electric Co., Inc.
Electric motor,Electrical equipment,AC motor,
...[+2]
Avg patent value: 3.39 M
12
PMC Industries, Inc.
Nail polish,Aerosol,Lotion
Avg patent value: 2.62 M
13
STERIS, Inc.
Medicine
Avg patent value: 2.52 M
14
Magna Electronics, Inc.
Electronic component,Computer hardware,Electronics,
...[+2]
Avg patent value: 2.46 M
15
Pipe Restoration Technologies LLC
Epoxy,Mining engineering,Natural resource management,
...[+2]
Avg patent value: 2.38 M
16
Greensleeves LLC
Automation,Mechanical engineering,Manufacturing engineering,
...[+1]
Avg patent value: 2.36 M
17
View, Inc.
Smart glass
Avg patent value: 2.07 M
18
North Park Innovations Group, Inc.
Software,Mobile service,Technician
Avg patent value: 2.05 M
19
Emerson Digital Cold Chain, Inc.
Energy management,Electronics
Avg patent value: 1.83 M
20
Siemens Energy & Automation, Inc.
Electronics,Automation,Electric utility
Avg patent value: 1.79 M
21
PaceControls LLC
Refrigeration,Computer hardware,Electronics
Avg patent value: 1.74 M
22
Emerson Climate Technologies, Inc.
Refrigeration,Air conditioning,Automation,
...[+2]
Avg patent value: 1.70 M
23
EcoFactor, Inc.
Energy management,Software as a service,Machine learning,
...[+2]
Avg patent value: 1.70 M
24
Owens Corning Intellectual Capital LLC
Intellectual capital,Chemical engineering
Avg patent value: 1.64 M
25
Transformative Wave Technologies LLC
Avg patent value: 1.63 M
26
ZipWall LLC
Demolition,Automation,Manufacturing engineering,
...[+2]
Avg patent value: 1.62 M
27
HELIX International
Software,Cloud database,Association (object-oriented programming),
...[+2]
Avg patent value: 1.55 M
28
Helix International, Inc.
Metalworking
Avg patent value: 1.55 M
29
NanoScale Corp.
Odor,Indoor air quality,Nanocrystalline material
Avg patent value: 1.50 M
30
Franklin Control Systems LLC
Starter,Electrical equipment,Electronics
Avg patent value: 1.49 M
31
K4Connect, Inc.
Software,Web development,Health care,
...[+2]
Avg patent value: 1.41 M
32
Savant Systems LLC
Software,Home automation,Computer hardware,
...[+2]
Avg patent value: 1.41 M
33
Emerson Electric Co.
Software,Computer hardware,Electronics,
...[+2]
Avg patent value: 1.30 M
34
Cummins, Inc.
Electric vehicle,Natural gas,Petroleum industry,
...[+2]
Avg patent value: 1.29 M
35
NEXTracker, Inc.
Solar power,Solar energy,Renewable energy,
...[+2]
Avg patent value: 1.28 M
36
3M Innovative Properties Co.
Intellectual property,Product design
Avg patent value: 1.27 M
37
Bluffton Motor Works LLC
Electronics,Horsepower,Electric motor,
...[+2]
Avg patent value: 1.23 M
38
ExteNet Systems, Inc.
Wireless,Telecommunications,Fiber network,
...[+2]
Avg patent value: 1.17 M
39
Synexis LLC
Hydrogen peroxide
Avg patent value: 1.16 M
40
Optimum Energy LLC
Smart meter,Software,Efficient energy use,
...[+2]
Avg patent value: 1.15 M
41
7AC Technologies, Inc.
Air conditioning,Efficient energy use,Electronics,
...[+2]
Avg patent value: 1.13 M
42
Regal Beloit Americas, Inc.
Electric motor,Coupling,Electrical equipment,
...[+2]
Avg patent value: 1.10 M
43
Microsoft Corp.
Software,Operating system,Cloud computing,
...[+2]
Avg patent value: 1.05 M
44
Trane International, Inc.
Building management,Automation,Manufacturing engineering,
...[+2]
Avg patent value: 1.00 M
45
HomeAway.com, Inc.
Renting
Avg patent value: 980,000
46
General Electric Co.
Energy management,Turbine,Electronics,
...[+2]
Avg patent value: 970,323
47
Nidec Motor Corp.
Electric motor,Electrical equipment,Electronics,
...[+2]
Avg patent value: 937,043
48
Bergstrom, Inc.
Automotive engineering,Public transport,Climate system,
...[+2]
Avg patent value: 913,684
49
Best Technologies, Inc.
Semiconductor,Electronic component
Avg patent value: 900,000
50
Johnson Controls Technology Co.
Avg patent value: 880,933
51
Cooper Technologies Co.
Materials testing,Medicine,Cement
Avg patent value: 840,000
52
Vigilent Corp.
Energy management,Machine learning,Data center,
...[+2]
Avg patent value: 786,916
53
enVerid Systems, Inc.
Air conditioning,Energy storage,Energy management,
...[+2]
Avg patent value: 778,571
54
Thermo King Corp.
Truck,Supply chain management,Manufacturing engineering,
...[+2]
Avg patent value: 768,232
55
Chrysler Group LLC
Avg patent value: 760,000
56
Autani LLC
Energy management,Software,Building automation,
...[+2]
Avg patent value: 740,000
57
Lennox Industries, Inc.
Air conditioning,Computer hardware,Electronics,
...[+2]
Avg patent value: 731,656
58
Uplight, Inc.
Ecosystem,Software,Data analysis,
...[+2]
Avg patent value: 710,000
59
Braeburn Systems LLC
Sales management,Indoor air quality,Technical support
Avg patent value: 688,000
60
Schneider Electric USA, Inc.
Distribution board,Power transmission,Electrical equipment,
...[+2]
Avg patent value: 595,684
61
Hyliion, Inc.
Public transport,Electrification,Greenhouse gas,
...[+2]
Avg patent value: 590,000
62
Energizer Auto, Inc.
Shopping mall
Avg patent value: 580,000
63
Tesla, Inc.
Electric vehicle,Electronics,Automotive engineering,
...[+2]
Avg patent value: 575,384
64
Cambridge Engineering, Inc.
Avg patent value: 560,000
65
Schneider Electric Systems USA, Inc.
Software,Automation,Software as a service,
...[+2]
Avg patent value: 546,666
66
Greenheck Fan Corp.
Control equipment,Fast-moving consumer goods,Electronics,
...[+2]
Avg patent value: 540,000
67
Blue Box Air LLC
Filtration,Automation,Manufacturing engineering,
...[+2]
Avg patent value: 512,818
68
Pelco, Inc.
IP camera,Physical security,Real-time computing,
...[+2]
Avg patent value: 510,000
69
Rectorseal Corp.
Avg patent value: 480,000
70
General Motors LLC
Software
Avg patent value: 461,333
71
ShopperTrak RCT Corp.
Advertising,Software,Enterprise software,
...[+1]
Avg patent value: 460,000
72
Zoox, Inc.
Robotics,Public transport,Software,
...[+2]
Avg patent value: 458,857
73
GridPoint, Inc.
Energy management,Software,Building automation,
...[+2]
Avg patent value: 434,545
74
Enel X North America, Inc.
Energy management,Software,Efficient energy use,
...[+2]
Avg patent value: 425,000
75
K&N Engineering, Inc.
Filter (aquarium),Automotive engineering,Oil filter,
...[+2]
Avg patent value: 415,032
76
Flexible Technologies, Inc.
Manufacturing organization,Belting,Manufacturing engineering,
...[+2]
Avg patent value: 410,000
77
Berg Pharma LLC
Brain monitoring,Image analysis,Deep learning,
...[+1]
Avg patent value: 410,000
78
Polaris Inc.
Electric vehicle,Atazanavir,Public transport,
...[+2]
Avg patent value: 399,090
79
Carrier Corp.
Refrigeration,Air conditioning,Mechanical engineering,
...[+2]
Avg patent value: 391,277
80
Clean Power Research LLC
Software,Solar energy,Renewable energy system,
...[+2]
Avg patent value: 387,333
81
Hussmann Corp.
Refrigeration,Food industry,Cold chain,
...[+2]
Avg patent value: 375,000
82
Raytheon Technologies Corp.
Aerospace,National security,Aerospace systems,
...[+2]
Avg patent value: 370,000
83
Raytheon Co.
Missile,National security,Aerospace,
...[+2]
Avg patent value: 370,000
84
Toledo Molding & Die, Inc.
Product design,Automotive engineering,3D printing,
...[+2]
Avg patent value: 370,000
85
Kinestral Technologies, Inc.
Smart glass,Materials science,Smart city,
...[+2]
Avg patent value: 370,000
86
Rectorseal LLC
Sealant,Fire protection,Industrial engineering,
...[+2]
Avg patent value: 350,750
87
Cypress Envirosystems, Inc.
Industrial engineering,Energy management,Electricity meter,
...[+2]
Avg patent value: 350,000
88
Honeywell International, Inc.
Aerospace,Electronics,Market research,
...[+2]
Avg patent value: 346,390
89
Haworth, Inc.
Office chair,Fixture,Architecture
Avg patent value: 340,000
90
Watsco Ventures LLC
Corporate innovation,Asset management,Venture capital
Avg patent value: 332,366
91
Valeo Climate Control Corp.
Automotive engineering
Avg patent value: 329,782
92
Alaska Structures, Inc.
Airplane,Construction engineering,Environmental technology,
...[+2]
Avg patent value: 320,000
93
eNow, Inc.
Solar energy,Public transport,Hydronics,
...[+2]
Avg patent value: 320,000
94
Chicago Controls Thermostats, Inc.
Avg patent value: 320,000
95
Shield Air Solutions, Inc.
Renewable energy,Environmental control system,Conditioners,
...[+1]
Avg patent value: 310,000
96
Sterling Custom Sheet Metal, Inc.
Wood processing,Business-to-business
Avg patent value: 310,000
97
Mitsubishi Electric Research Laboratories, Inc.
Mechatronics,Computer vision,Algorithm,
...[+1]
Avg patent value: 297,010
98
United Technologies
Aerospace,Public transport,Building automation,
...[+2]
Avg patent value: 293,333
99
United-Tech, Inc.
Yeast,Telecommunications,Chemical treatment,
...[+2]
Avg patent value: 293,333
100
Blue Leaf I.P., Inc.
Special purpose entity
Avg patent value: 289,363
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