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Top 100 Fast-growings companies in NOx
by Most Patent Filing In 5 Years in the China in 2019

The NOx top 100 is Discovery PatSnap’ annual ranking of the top 100 Most Patent Filing In 5 Years NOx Fast-growings in the China. Discovery has identified the top key players, startups & unicorns, fast-growings, news entrants in 2019, 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
China Petroleum & Chemical Corp.
Petrochemical,Petroleum,Enterprise software,
...[+2]
Patent: 65
2
Xi'an Jiaotong University
Materials science,Computer science,Composite material,
...[+2]
Patent: 48
3
Shanghai Wisebond Technology Co., Ltd.
Nitrogen,Denitrification,Petrochemical,
...[+1]
Patent: 41
4
North China Electric Power University
Pinyin,Control theory,Computer science,
...[+2]
Patent: 38
5
Tianjin University
Radio-frequency identification,Coronavirus disease 2019 (COVID-19),Pinyin,
...[+2]
Patent: 34
6
Tsinghua University
Western culture,TUTOR,Silicon carbide,
...[+2]
Patent: 31
7
Weichai Power Co., Ltd.
Diesel engine,Spark plug,Gasoline,
...[+2]
Patent: 30
8
Sinopec Research Institute of Petroleum Processing
Patent: 29
9
Zhongye Changtian International Engineering Co., Ltd.
Silicon valley,Construction engineering
Patent: 28
10
Dalian University of Technology
Revocation,Materials science,Chemistry,
...[+2]
Patent: 27
11
Huaneng Clean Energy Research Institute
Petroleum coke
Patent: 27
12
Huadian Electric Power Research Institute Co., Ltd.
Hydropower,Energy technology
Patent: 26
13
Beijing University of Technology
International standard,MicroLED,Vocational education,
...[+2]
Patent: 24
14
Zhejiang University
Pinyin,Educational institution,Cancer immunotherapy,
...[+2]
Patent: 23
15
Shandong University
Pinyin,Public university,Coronavirus,
...[+2]
Patent: 20
16
University of Science & Technology Beijing
Metallurgy,Pinyin,Materials science,
...[+2]
Patent: 20
17
Kunming University of Science & Technology
Materials science,Metallurgy,Chemistry,
...[+2]
Patent: 20
18
Jiangsu University
Doctoral research,Pinyin,Materials science,
...[+2]
Patent: 20
19
Shanghai Jiao Tong University
CONTEST,Biological membrane,Biofabrication,
...[+2]
Patent: 18
20
Huazhong University of Science & Technology
Education development,Cell therapy,Drug repositioning,
...[+2]
Patent: 17
21
Xi'an Thermal Power Research Institute Co., Ltd.
Patent: 17
22
State Grid Corp. of China
Electric vehicle,Power grid,Total asset,
...[+2]
Patent: 17
23
SINOPEC Engineering (Group) Co., Ltd.
Construction engineering,Chemical engineering,Oil well,
...[+2]
Patent: 17
24
Central South University
Metallurgy,Solid-state battery,Lithium-ion battery,
...[+2]
Patent: 16
25
Anhui University of Technology
Pinyin,Literature,Materials science,
...[+2]
Patent: 16
26
Southeast University
Mechanical engineering,Molecular beam epitaxy,Retinitis,
...[+2]
Patent: 15
27
YanTai LongYuan Power Technology Co., Ltd.
Heat exchanger,Electronics,NOx,
...[+2]
Patent: 15
28
Harbin Engineering University
Pinyin,Computer science,Control theory,
...[+2]
Patent: 15
29
Shenwu Technology Group Co., Ltd.
Patent: 15
30
Wuxi Weifu Environmental Protection Catalyst Co. Ltd.
Patent: 14
31
Guangzhou Bosma Optoelectronic Technology Co. Ltd.
Computer hardware,Electronics,Semiconductor,
...[+1]
Patent: 14
32
Dalian Institute of Chemical Physics Chinese Academy of Sciences
Chemistry,Inorganic chemistry,Catalysis,
...[+2]
Patent: 12
33
Harbin Institute of Technology
Facial recognition system,Artificial intelligence,Science and engineering,
...[+2]
Patent: 12
34
Ningbo Fotile Kitchenware Co. Ltd.
Electronics,Stove,Vacuum cleaner,
...[+2]
Patent: 12
35
Sinocat Environmental Technology Co., Ltd.
Automotive catalyst,Automotive engineering,Cisco Catalyst
Patent: 11
36
Guangxi Yuchai Machinery Group Co., Ltd.
Internal combustion engine,Automotive engineering,Diesel engine,
...[+1]
Patent: 11
37
CISDI Industrial Furnace Co. Ltd.
Patent: 10
38
Datang Environment Industry Group Co., Ltd.
Energy conservation,Environmental protection,Denitrification,
...[+2]
Patent: 10
39
Harbin Boiler Co., Ltd.
Boiler (power generation),Recovery boiler,Automation,
...[+2]
Patent: 10
40
Zhengzhou University
Academic Training,Educational institution,Graduate degree,
...[+2]
Patent: 9
41
Guodian Science & Technology Research Institute Co., Ltd.
Research development
Patent: 9
42
Tongji University
Artificial intelligence,Pinyin,Structural engineering,
...[+2]
Patent: 9
43
Dalian Maritime University
Ministry of Transport,Pinyin,Computer science,
...[+2]
Patent: 9
44
Northeast Forestry University
Forestry,Pinyin,Jurisdiction,
...[+2]
Patent: 9
45
Taiyuan University of Technology
Pinyin,Materials science,Chemistry,
...[+2]
Patent: 9
46
Jilin University
Pinyin,Coronavirus,Jurisdiction,
...[+2]
Patent: 8
47
Hangzhou Zhongbing Environmental Protection Co., Ltd.
Automation,Industrial engineering,Manufacturing engineering,
...[+2]
Patent: 8
48
Jiangsu Kehang Environment Engineering Technology Co. Ltd.
Patent: 8
49
Hudong Heavy Machinery Co., Ltd.
Shipbuilding,Diesel engine,Gasoline,
...[+1]
Patent: 8
50
Wuhan University of Technology
Materials science,Composite material,Computer science,
...[+2]
Patent: 8
51
Beijing Guodian Longyuan Environmental Engineering Co., Ltd.
Environmental protection,Flue-gas desulfurization,Air pollution,
...[+2]
Patent: 8
52
State Power Environmental Protection Research Institute
Patent: 8
53
Shandong Energy Group Co., Ltd.
Coal,Mining engineering,Natural resource management,
...[+2]
Patent: 8
54
Weichai Power Air Purification Technology Co., Ltd.
Fishery,Nanotechnology,Chemistry,
...[+2]
Patent: 8
55
Dongfeng Commercial Vehicles Co., Ltd.
Truck,Automotive engineering
Patent: 8
56
Yunnan Minzu University
Ethnic group,Literature,Chemistry,
...[+2]
Patent: 8
57
Beijing University of Chemical Technology
Chemical engineering,Biology,Pinyin,
...[+2]
Patent: 7
58
China Huaneng Group Co., Ltd.
Power transmission,Hydropower,Environmental protection,
...[+2]
Patent: 7
59
Zhongjing Environmental Technology Co. Ltd.
Patent: 7
60
Shanxi University
Pinyin,Public university,Chemistry,
...[+2]
Patent: 7
61
Huaneng Power International, Inc.
Electronics,Power transmission,Electricity,
...[+2]
Patent: 7
62
Xinjiang University
Pinyin,Chemistry,Mathematics,
...[+2]
Patent: 7
63
China Shenhua Energy Co., Ltd.
Coal,Coal mining,Electricity,
...[+2]
Patent: 7
64
Beijing SPC Environment Protection Tech Co., Ltd.
Civil engineering,Flue-gas desulfurization,Construction engineering,
...[+2]
Patent: 7
65
Xiangtan University
Pinyin,Chemistry,Materials science,
...[+2]
Patent: 7
66
Guangdong Macro Gas Appliance Co., Ltd.
Air purifier,Electronics,Heating system
Patent: 7
67
South China Institute of Environmental Sciences
Patent: 7
68
Shanghai Boiler Works Ltd.
Boiler (power generation)
Patent: 7
69
SINOPEC Fushun Research Institute of Petroleum & Petrochemic
Patent: 7
70
Qinhuangdao Glass Industry Research & Design Institute
Patent: 7
71
Taiwan Semiconductor Manufacturing Co., Ltd.
Semiconductor,Electronics,Product design,
...[+2]
Patent: 6
72
China Power Conservation & Environment Protection Co. Ltd.
Flue gas,Environmental consulting
Patent: 6
73
China City Environment Protection Engineering Ltd. Co.
Patent: 6
74
Gree Electric Appliances, Inc. of Zhuhai
Electronics,Conditioners,Air conditioning,
...[+2]
Patent: 6
75
Wuhan University of Science & Technology
Materials science,Metallurgy,Computer science,
...[+2]
Patent: 6
76
Sinopec Engineering, Inc.
Petrochemical,Construction engineering
Patent: 5
77
Sichuan Chuanguo Boiler Co., Ltd.
Automation,Mechanical engineering,Manufacturing engineering,
...[+1]
Patent: 5
78
University Of Jinan
Pinyin,Chemistry,Materials science,
...[+2]
Patent: 5
79
Guilin University of Technology
Literature,Agriculture,Materials science,
...[+2]
Patent: 5
80
University of Ningbo
Pinyin,Chemistry,Materials science,
...[+2]
Patent: 5
81
Xi'an University of Architecture & Technology
Architecture,Materials science,Structural engineering,
...[+2]
Patent: 5
82
Nanjing University of Aeronautics & Astronautics
Astronautics,Molecular sensor,Solid-state battery,
...[+2]
Patent: 5
83
Beijing University of Civil Engineering & Architecture
Computer science,Structural engineering,Materials science,
...[+2]
Patent: 5
84
Guangdong Vanward New Electric Co., Ltd.
Smoke,Stove,Electronics,
...[+2]
Patent: 5
85
Qingdao University of Science & Technology
Pinyin,Chemical industry,Chemistry,
...[+2]
Patent: 5
86
Wuxi Weifu Lida Catalytic Converter Co., Ltd.
Catalytic converter,Automotive engineering,Exhaust emission,
...[+2]
Patent: 5
87
WISDRI Engineering & Research Inc. Ltd.
Patent: 5
88
Jiangsu University of Science & Technology
Package on package,Multi-chip module,Wafer-level packaging,
...[+2]
Patent: 5
89
Qingdao Huashijie Environment Technology Co., Ltd.
Patent: 5
90
Wuxi Huaguang Environment & Energy Group Co., Ltd.
Industrial engineering,Boiler (power generation),Supercapacitor,
...[+2]
Patent: 4
91
Research Institute of Nanjing Chemical Industry Group
Patent: 4
92
FAW Jiefang Automotive Co. Ltd.
Diesel engine,Manufacturing engineering,Mechanical engineering,
...[+2]
Patent: 4
93
Fuzhou University
Pinyin,MicroLED,Solid-state battery,
...[+2]
Patent: 4
94
Jiangxi Isuzu Engine Co. Ltd.
Automotive engineering
Patent: 4
95
China Energy Investment Corp., Ltd.
Coal,Coal liquefaction,Renewable energy,
...[+2]
Patent: 4
96
China Shipbuilding Power Engineering Institute Co. Ltd.
Patent: 4
97
Zhejiang Fuchunjiang Environmental Thermoelectric Co., Ltd.
Civil engineering,Power transmission,Electronics,
...[+1]
Patent: 4
98
Anhui Jianghuai Automobile Group Corp. Ltd.
Chassis,Automotive engineering,Truck,
...[+2]
Patent: 4
99
Yancheng Institute of Technology
Patent: 4
100
Northwestern Polytechnical University
Pinyin,Materials science,Composite material,
...[+2]
Patent: 4
Page generation time: Jun 20 2025