Top 50 Key Players companies in NOx by Most Patent Filings in the China in 2022 – Discovery

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The NOx top 50 is Discovery PatSnap’ annual ranking of the top 50 Most Patent Filings 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.

1	China Petroleum & Chemical Corp.	Beijing Shi, China	Petrochemical,Petroleum,Enterprise software, ...[+2]	Patent: 110
2	Xi'an Thermal Power Research Institute Co., Ltd.	Shaanxi Sheng, China		Patent: 70
3	Weichai Power Co., Ltd.	Shandong Sheng, China	Diesel engine,Spark plug,Gasoline, ...[+2]	Patent: 68
4	YanTai LongYuan Power Technology Co., Ltd.	Shandong Sheng, China	Heat exchanger,Electronics,NOx, ...[+2]	Patent: 61
5	Huaneng Clean Energy Research Institute	Beijing Shi, China	Petroleum coke	Patent: 59
6	Shanghai Wisebond Technology Co., Ltd.	Shanghai Shi, China	Nitrogen,Denitrification,Petrochemical, ...[+1]	Patent: 42
7	Zhongye Changtian International Engineering Co., Ltd.	Hunan Sheng, China	Silicon valley,Construction engineering	Patent: 38
8	State Grid Corp. of China	Beijing Shi, China	Electric vehicle,Power grid,Total asset, ...[+2]	Patent: 37
9	Sinopigment & Enamel Chemicals Ltd.	China		Patent: 35
10	Guangzhou Bosma Optoelectronic Technology Co. Ltd.	Guangdong Sheng, China	Computer hardware,Electronics,Semiconductor, ...[+1]	Patent: 33
11	Huadian Electric Power Research Institute Co., Ltd.	Zhejiang Sheng, China	Hydropower,Energy technology	Patent: 31
12	Guangxi Yuchai Machinery Group Co., Ltd.	China	Internal combustion engine,Automotive engineering,Diesel engine, ...[+1]	Patent: 28
13	SINOPEC Engineering (Group) Co., Ltd.	Beijing Shi, China	Construction engineering,Chemical engineering,Oil well, ...[+2]	Patent: 26
14	Datang Environment Industry Group Co., Ltd.	Beijing Shi, China	Energy conservation,Environmental protection,Denitrification, ...[+2]	Patent: 24
15	Wuxi Weifu Environmental Protection Catalyst Co. Ltd.	China		Patent: 24
16	CISDI Industrial Furnace Co. Ltd.	Sichuan Sheng, China		Patent: 19
17	Shenwu Technology Group Co., Ltd.	Chongqing Shi, China		Patent: 18
18	Guodian Science & Technology Research Institute Co., Ltd.	Jiangsu Sheng, China	Research development	Patent: 18
19	Sinocat Environmental Technology Co., Ltd.	Sichuan Sheng, China	Automotive catalyst,Automotive engineering,Cisco Catalyst	Patent: 17
20	Harbin Boiler Co., Ltd.	Heilongjiang Sheng, China	Boiler (power generation),Recovery boiler,Automation, ...[+2]	Patent: 17
21	Great Wall Motor Co., Ltd.	Hebei Sheng, China	HAVAL,Sport utility vehicle,Automotive engineering, ...[+2]	Patent: 15
22	Guangdong Vanward New Electric Co., Ltd.	Guangdong Sheng, China	Smoke,Stove,Electronics, ...[+2]	Patent: 15
23	China Huaneng Group Co., Ltd.	Beijing Shi, China	Power transmission,Hydropower,Environmental protection, ...[+2]	Patent: 15
24	China Shenhua Energy Co., Ltd.	Beijing Shi, China	Coal,Coal mining,Electricity, ...[+2]	Patent: 14
25	SINOPEC Fushun Research Institute of Petroleum & Petrochemic	China		Patent: 14
26	Zhejiang Fuchunjiang Environmental Thermoelectric Co., Ltd.	Zhejiang Sheng, China	Civil engineering,Power transmission,Electronics, ...[+1]	Patent: 13
27	State Power Environmental Protection Research Institute	China		Patent: 13
28	Jiangsu Kehang Environment Engineering Technology Co. Ltd.	China		Patent: 13
29	Midea Group Co. Ltd.	Jilin, China	Air conditioning,Electronics,Fast-moving consumer goods, ...[+2]	Patent: 12
30	Huaneng Power International, Inc.	Beijing Shi, China	Electronics,Power transmission,Electricity, ...[+2]	Patent: 12
31	Ningbo Fotile Kitchenware Co. Ltd.	China	Electronics,Stove,Vacuum cleaner, ...[+2]	Patent: 12
32	BASF (China) Co., Ltd.	Shanghai Shi, China	Chemical engineering,Textile dye,Textile, ...[+2]	Patent: 12
33	Weichai Power Air Purification Technology Co., Ltd.	Shandong Sheng, China	Fishery,Nanotechnology,Chemistry, ...[+2]	Patent: 12
34	Baoshan Iron & Steel Co., Ltd.	Shanghai Shi, China	Carbon steel,Irone,Mining engineering, ...[+2]	Patent: 11
35	Angang Steel Co., Ltd.	Liaoning Sheng, China	Metal,Mining engineering,Precious metal, ...[+2]	Patent: 11
36	Zhejiang Yinlun Machinery Co., Ltd.	Zhejiang Sheng, China	Exhaust gas recirculation,Mechanical engineering,Intercooler, ...[+2]	Patent: 11
37	Shandong Energy Group Co., Ltd.	Shandong Sheng, China	Coal,Mining engineering,Natural resource management, ...[+2]	Patent: 11
38	Dongfeng Commercial Vehicles Co., Ltd.	Hubei Sheng, China	Truck,Automotive engineering	Patent: 11
39	Sichuan Chuanguo Boiler Co., Ltd.	China	Automation,Mechanical engineering,Manufacturing engineering, ...[+1]	Patent: 11
40	Wuxi Weifu Lida Catalytic Converter Co., Ltd.	Jiangsu Sheng, China	Catalytic converter,Automotive engineering,Exhaust emission, ...[+2]	Patent: 11
41	Guangdong Macro Gas Appliance Co., Ltd.	Guangdong Sheng, China	Air purifier,Electronics,Heating system	Patent: 11
42	Wuxi Huaguang Environment & Energy Group Co., Ltd.	Jiangsu Sheng, China	Industrial engineering,Boiler (power generation),Supercapacitor, ...[+2]	Patent: 10
43	Beijing Guodian Longyuan Environmental Engineering Co., Ltd.	Beijing Shi, China	Environmental protection,Flue-gas desulfurization,Air pollution, ...[+2]	Patent: 10
44	Hangzhou Yinlun Technology Co. Ltd.	Zhejiang Sheng, China	Automation,Manufacturing engineering,Industrial engineering, ...[+2]	Patent: 10
45	Zhejiang Tianlan Environmental Protection Technology Co., Ltd.	Zhejiang Sheng, China		Patent: 10
46	Beijing SPC Environment Protection Tech Co., Ltd.	Beijing Shi, China	Civil engineering,Flue-gas desulfurization,Construction engineering, ...[+2]	Patent: 9
47	FAW Jiefang Automotive Co. Ltd.	Jiangsu Sheng, China	Diesel engine,Manufacturing engineering,Mechanical engineering, ...[+2]	Patent: 9
48	China City Environment Protection Engineering Ltd. Co.	Hubei Sheng, China		Patent: 9
49	Zhongjing Environmental Technology Co. Ltd.	China		Patent: 9
50	Hudong Heavy Machinery Co., Ltd.	Shanghai Shi, China	Shipbuilding,Diesel engine,Gasoline, ...[+1]	Patent: 9