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Top 20 Key Players companies in NOx
by Highest Patent Value in the South Korea in 2020

The NOx top 20 is Discovery PatSnap’ annual ranking of the top 20 Highest Patent Value NOx Key Players in the South Korea. 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.
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Company Name
Region
Tech Topics
Total
1
Avg patent value: 1.42 M
2
Avg patent value: 812,055
3
Avg patent value: 724,157
4
Customer expectation,Automotive engineering,Public transport,
...[+2]
Avg patent value: 653,249
5
Avg patent value: 643,250
6
Avg patent value: 396,333
7
Avg patent value: 372,500
8
Avg patent value: 350,842
9
Korea Development Bank
Venture capital,Mobile device,Local currency,
...[+2]
Avg patent value: 230,000
10
Avg patent value: 230,000
11
Human resources
Avg patent value: 190,000
12
Avg patent value: 121,529
13
Avg patent value: 110,000
14
Food industry,Health care
Avg patent value: 91,000
15
Avg patent value: 86,000
16
Avg patent value: 82,730
17
Avg patent value: 76,000
18
Avg patent value: 63,938
19
Civil engineering,Architecture
Avg patent value: 61,000
20
Avg patent value: 59,291
Page generation time: Jun 21 2025