Top 20 Key Players companies in NOx by Most Patent Citation in the China in 2019 – Discovery

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The NOx top 20 is Discovery PatSnap’ annual ranking of the top 20 Most Patent Citation NOx Key Players 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.

1	China Petroleum & Chemical Corp.	Beijing Shi, China	Petrochemical,Petroleum,Enterprise software, ...[+2]	patent citation: 146
2	YanTai LongYuan Power Technology Co., Ltd.	Shandong Sheng, China	Heat exchanger,Electronics,NOx, ...[+2]	patent citation: 142
3	Huaneng Clean Energy Research Institute	Beijing Shi, China	Petroleum coke	patent citation: 113
4	State Grid Corp. of China	Beijing Shi, China	Electric vehicle,Power grid,Total asset, ...[+2]	patent citation: 109
5	BASF (China) Co., Ltd.	Shanghai Shi, China	Chemical engineering,Textile dye,Textile, ...[+2]	patent citation: 84
6	Weichai Power Co., Ltd.	Shandong Sheng, China	Diesel engine,Spark plug,Gasoline, ...[+2]	patent citation: 83
7	Tianhua Institute of Chemical Machinery & Automation	Gansu Sheng, China	Automation	patent citation: 78
8	Shanghai Wisebond Technology Co., Ltd.	Shanghai Shi, China	Nitrogen,Denitrification,Petrochemical, ...[+1]	patent citation: 77
9	Guodian Science & Technology Research Institute Co., Ltd.	Jiangsu Sheng, China	Research development	patent citation: 73
10	Xi'an Thermal Power Research Institute Co., Ltd.	Shaanxi Sheng, China		patent citation: 72
11	Changchun Huigong Purification Industry Co., Ltd.	China		patent citation: 59
12	Kunming Guiyan Catalyst Co. Ltd.	China		patent citation: 54
13	Beijing Guodian Longyuan Environmental Engineering Co., Ltd.	Beijing Shi, China	Environmental protection,Flue-gas desulfurization,Air pollution, ...[+2]	patent citation: 52
14	Zhejiang Yinlun Machinery Co., Ltd.	Zhejiang Sheng, China	Exhaust gas recirculation,Mechanical engineering,Intercooler, ...[+2]	patent citation: 51
15	Sichuan Chuanguo Boiler Co., Ltd.	China	Automation,Mechanical engineering,Manufacturing engineering, ...[+1]	patent citation: 51
16	Guangzhou Bosma Optoelectronic Technology Co. Ltd.	Guangdong Sheng, China	Computer hardware,Electronics,Semiconductor, ...[+1]	patent citation: 51
17	Hangzhou Yinlun Technology Co. Ltd.	Zhejiang Sheng, China	Automation,Manufacturing engineering,Industrial engineering, ...[+2]	patent citation: 51
18	Wuxi Weifu Environmental Protection Catalyst Co. Ltd.	China		patent citation: 49
19	Haier Group Corp.	Shandong Sheng, China	Electronics,Power transmission,Interior design, ...[+2]	patent citation: 48
20	State Power Environmental Protection Research Institute	China		patent citation: 47