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Top 50 Key Players companies in NOx
by Highest Patent Value in the China in 2022

The NOx top 50 is Discovery PatSnap’ annual ranking of the top 50 Highest Patent Value NOx Key Players in the China. 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.
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Company Name
Region
Tech Topics
Total
1
Avg patent value: 1.32 M
2
Avg patent value: 601,428
3
Avg patent value: 350,000
4
Avg patent value: 270,000
5
Avg patent value: 250,000
6
Avg patent value: 250,000
7
Avg patent value: 245,000
8
Avg patent value: 240,000
9
Avg patent value: 240,000
10
Avg patent value: 240,000
11
Avg patent value: 220,000
12
Avg patent value: 220,000
13
Avg patent value: 203,333
14
Avg patent value: 190,000
15
Avg patent value: 190,000
16
Avg patent value: 180,000
17
Avg patent value: 180,000
18
Avg patent value: 180,000
19
Avg patent value: 172,355
20
Avg patent value: 170,000
21
Avg patent value: 165,000
22
Avg patent value: 160,000
23
Aerospace,National security
Avg patent value: 160,000
24
Avg patent value: 150,000
25
Avg patent value: 150,000
26
Avg patent value: 140,000
27
Avg patent value: 140,000
28
Avg patent value: 140,000
29
Avg patent value: 139,671
30
Avg patent value: 135,000
31
Avg patent value: 126,800
32
Avg patent value: 121,500
33
Avg patent value: 120,000
34
Avg patent value: 120,000
35
Avg patent value: 120,000
36
Electromagnetic clutch,Pulley,Machine element,
...[+2]
Avg patent value: 115,866
37
Avg patent value: 110,000
38
Ceramic art
Avg patent value: 110,000
39
Avg patent value: 110,000
40
Avg patent value: 110,000
41
Yangmei Group Shenzhou Chemical Co. Ltd.
Avg patent value: 110,000
42
Avg patent value: 106,800
43
Air conditioning,Electronics,Fast-moving consumer goods,
...[+2]
Avg patent value: 100,754
44
Avg patent value: 100,000
45
Avg patent value: 100,000
46
Avg patent value: 100,000
47
Avg patent value: 100,000
48
Avg patent value: 99,841
49
Avg patent value: 97,875
50
Avg patent value: 97,800
Page generation time: Jun 21 2025