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Top 20 Key Players companies in NOx
by Most Literature Citation in the world in 2022

The NOx top 20 is Discovery PatSnap’ annual ranking of the top 20 Most Literature Citation NOx Key Players in the world. Discovery has identified the top key players, startups & unicorns, fast-growings, news entrants in 2022, 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.
#
Company Name
Region
Tech Topics
Total
1
Basic research,Publishing,Market research,
...[+2]
Literature citation: 21,990
2
The National Center for Atmospheric Research
Literature citation: 18,538
3
Literature citation: 6,557
4
Research Triangle Foundation
Science park
Literature citation: 6,355
5
Niederösterreich, Austria
Literature citation: 6,205
6
Knowledge base,Entrepreneurial culture,BCG vaccine,
...[+2]
Literature citation: 5,262
7
Literature citation: 5,006
8
Literature citation: 4,197
9
Ames Research Center
Market research,NASA research,Silicon valley,
...[+2]
Literature citation: 4,032
10
Utrecht, Netherlands
Literature citation: 3,891
11
Literature citation: 3,241
12
Victoria, Australia
Market research,Phosphatase,Kinase,
...[+2]
Literature citation: 2,944
13
Literature citation: 2,547
14
Public opinion,Health care,Chemistry,
...[+2]
Literature citation: 2,447
15
Akershus, Norway
Association (object-oriented programming)
Literature citation: 2,289
16
Norwegian Meteorological Institute
Oslo, Norway
Literature citation: 2,160
17
Graphene,Association (object-oriented programming)
Literature citation: 1,996
18
Västra Götaland, Sweden
Literature citation: 1,604
19
Literature citation: 1,230
20
Brussels Hoofdstedelijk Gewest, Belgium
Literature citation: 1,181
Page generation time: Jun 20 2025