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Top 50 Key Players companies in NOx
by Most Literature Citation in the world in 2020

The NOx top 50 is Discovery PatSnap’ annual ranking of the top 50 Most Literature Citation NOx Key Players in the world. Discovery has identified the top key players, startups & unicorns, fast-growings, news entrants in 2020, ranking from differnt perspectives, including patent filing intensity, academic research capability, news media heat. The company list is generated from various data types.
In atmospheric chemistry, NO x is a generic term for the nitrogen oxides that are most relevant for air pollution, namely nitric oxide (NO) and nitrogen dioxide (NO 2 ). These gases contribute to the formation of smog and acid rain, as well as affecting tropospheric ozone.

Key Players

Fast-growings

Startups & Unicorns

New Entrants

Ranking Year:

2022

2021

2020

2019

2018

Region:

Global

Japan

Germany

United States

Ranking:

Most Patent Filings

Highest Patent Value

Most Patent Citation

Most Research Publications

Most Literature Citation

Most Market Reports

Most News Heat

#
Company Name
Region
Tech Topics
Total
1
Max Planck Gesellschaft zur Förderung der Wissenschaften eV
Bayern, Germany
Basic research,Publishing,Market research,
...[+2]
Literature citation: 21,896
2
The National Center for Atmospheric Research
Colorado, United States
Meteorology,Atmospheric chemistry,Mesa,
...[+2]
Literature citation: 18,437
3
Ford Motor Co.
Michigan, United States
Truck,Public transport,Automotive engineering,
...[+2]
Literature citation: 6,519
4
Research Triangle Foundation
North Carolina, United States
Science park
Literature citation: 6,348
5
International Institute for Applied Systems Analysis
Niederösterreich, Austria
Systems analysis,Human Dimension,Global change,
...[+2]
Literature citation: 6,168
6
Forschungszentrum Jülich GmbH
Nordrhein-Westfalen, Germany
Knowledge base,Entrepreneurial culture,BCG vaccine,
...[+2]
Literature citation: 5,217
7
General Motors Co.
Michigan, United States
Sport utility vehicle,Public transport,Enterprise software,
...[+2]
Literature citation: 4,994
8
Toyota Motor Corp.
Aichi, Japan
Sport utility vehicle,Mobile device,Public transport,
...[+2]
Literature citation: 4,123
9
Ames Research Center
Texas, United States
Market research,NASA research,Silicon valley,
...[+2]
Literature citation: 4,032
10
Royal Netherlands Meteorological Institute
Utrecht, Netherlands
Weather forecasting,Climatology,Atmospheric sciences,
...[+2]
Literature citation: 3,853
11
Johnson Matthey Chemicals GmbH
Nordrhein-Westfalen, Germany
Chemical engineering
Literature citation: 3,222
12
Commonwealth Scientific & Industrial Research Organisation
Victoria, Australia
Market research,Phosphatase,Kinase,
...[+2]
Literature citation: 2,916
13
Mercedes-Benz Group AG
Baden-Württemberg, Germany
Automotive engineering,Electric vehicle,Hybrid vehicle,
...[+2]
Literature citation: 2,547
14
The National Research Council
District of Columbia, United States
Public opinion,Health care,Chemistry,
...[+2]
Literature citation: 2,395
15
Norsk Institutt for Luftforskning
Akershus, Norway
Association (object-oriented programming)
Literature citation: 2,287
16
Norwegian Meteorological Institute
Oslo, Norway
Climatology,Meteorology,Oceanography,
...[+2]
Literature citation: 2,129
17
Advanced Industrial Science & Technology
Tokyo, Japan
Graphene,Association (object-oriented programming)
Literature citation: 1,977
18
U.S. Department of Agriculture
District of Columbia, United States
Agriculture,Food industry,Farming industry,
...[+2]
Literature citation: 1,749
19
Volvo AB
Västra Götaland, Sweden
Truck,Public transport,Industrial engineering,
...[+2]
Literature citation: 1,598
20
Das Alfred-Wegener-Institut für Polar- und Meeresforschung
Bremen, Germany
Latitude,Aerospace,National security
Literature citation: 1,276
21
General Electric Co.
Massachusetts, United States
Energy management,Turbine,Electronics,
...[+2]
Literature citation: 1,229
22
Umicore
Brussels Hoofdstedelijk Gewest, Belgium
Zinc,Precious metal,Catalysis,
...[+2]
Literature citation: 1,168
23
Siemens AG
Bayern, Germany
Power transmission,Electronics,Turbine,
...[+2]
Literature citation: 1,144
24
National Institute of Water & Atmospheric Research Ltd.
Auckland, New Zealand
Biotechnology,Environmental monitoring,Database
Literature citation: 1,103
25
Indian Institute of Tropical Meteorology
Maharashtra, India
Meteorology,Tropics,Scientific institution,
...[+1]
Literature citation: 1,101
26
Hitachi Ltd.
Tokyo, Japan
Elevator,Electrical equipment,Electric motor,
...[+2]
Literature citation: 960
27
Central Research Institute of Electric Power Industry
Kanagawa, Japan
Electric power industry,Technology transfer
Literature citation: 888
28
Caterpillar, Inc.
Illinois, United States
Turbine,Construction engineering,Mechanical engineering,
...[+2]
Literature citation: 788
29
Mitsubishi Heavy Industries, Ltd.
Tokyo, Japan
Aerospace,Electronics,Manufacturing engineering,
...[+2]
Literature citation: 780
30
Sintef AS
Sør-Trøndelag, Norway
Knowledge generation,Market research,Articulated robot,
...[+2]
Literature citation: 769
31
Alstom SA
Île-de-France, France
Public transport,Power transmission,Efficient energy use,
...[+2]
Literature citation: 723
32
Renault SA
Île-de-France, France
Sport utility vehicle,Automotive engineering,Venture capital,
...[+2]
Literature citation: 717
33
AVL List GmbH
Steiermark, Austria
Automotive engineering,Powertrain,Electric vehicle,
...[+2]
Literature citation: 699
34
Teknologian Tutkimuskeskus VTT Oy
Southern Finland, Finland
Telecommunications,Applied research,Solar cell,
...[+2]
Literature citation: 656
35
Aptiv Plc
DUBLIN, Ireland
Electric vehicle,Automotive engineering,Software,
...[+2]
Literature citation: 611
36
Ge Energy Infrastructure
Connecticut, United States
Power transmission,Electricity
Literature citation: 585
37
China Petroleum & Chemical Corp.
Beijing Shi, China
Petrochemical,Petroleum,Enterprise software,
...[+2]
Literature citation: 523
38
Robert Bosch GmbH
Baden-Württemberg, Germany
Automotive engineering,Mechanical engineering,Electronics,
...[+2]
Literature citation: 503
39
National Physical Laboratory Ltd.
Gloucestershire, United Kingdom
Medical imaging,Health care,Association (object-oriented programming),
...[+2]
Literature citation: 477
40
Shell Plc
Zuid-Holland, Netherlands
Petroleum,Renewable energy,Petroleum industry,
...[+2]
Literature citation: 475
41
Corning, Inc.
New York, United States
Telecommunications,Computer hardware,Electronics,
...[+2]
Literature citation: 445
42
Marshall Space Flight Center
Alabama, United States
Space Launch System,Spacecraft propulsion,Space Shuttle,
...[+2]
Literature citation: 441
43
Kema, Inc.
Lombardia, Italy
Renewable energy,Solar energy
Literature citation: 440
44
Institut Français
Île-de-France, France
Local culture,Commercial Organization
Literature citation: 361
45
Business International Corp.
United States
Literature citation: 358
46
KITECH
Chungcheongnam-do, South Korea
Industrial technology,Domestic industry
Literature citation: 258
47
Solar Turbines, Inc.
California, United States
Turbine,Petroleum industry,Power transmission,
...[+2]
Literature citation: 236
48
Honda Co.
JP
Mechanical engineering,Manufacturing engineering
Literature citation: 191
49
The Pratt & Whitney Co., Inc.
Connecticut, United States
Turbojet,Aerospace,Jet engine,
...[+2]
Literature citation: 180
50
Westinghouse Electric Co. LLC
Pennsylvania, United States
Nuclear power plant,Pressurized water reactor,Power transmission,
...[+2]
Literature citation: 123

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