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Top 50 Key Players companies in Dielectric barrier discharge
by Most Patent Filings in the China in 2022

The Dielectric barrier discharge top 50 is Discovery PatSnap’ annual ranking of the top 50 Most Patent Filings Dielectric barrier discharge 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.
Dielectric-barrier discharge (DBD) is the electrical discharge between two electrodes separated by an insulating dielectric barrier. Originally called silent (inaudible) discharge and also known as ozone production discharge or partial discharge, it was first reported by Ernst Werner von Siemens in 1857. On right, the schematic diagram shows a typical construction of a DBD wherein one of the two electrodes is covered with a dielectric barrier material. The lines between the dielectric and the electrode are representative of the discharge filaments, which are normally visible to the naked eye. Below this, the photograph shows an atmospheric DBD discharge occurring in between two steel electrode plates, each covered with a dielectric (mica) sheet. The filaments are columns of conducting plasma, and the foot of each filament is representative of the surface accumulated charge.
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Company Name
Region
Tech Topics
Total
1
China Petroleum & Chemical Corp.
Petrochemical,Petroleum,Enterprise software,
...[+2]
Patent: 16
2
Guangdong Midea Refrigeration Equipment Co., Ltd.
Refrigeration,Electronics
Patent: 10
3
Taiwan Semiconductor Manufacturing Co., Ltd.
Semiconductor,Electronics,Product design,
...[+2]
Patent: 8
4
Sinosteel Maanshan Institute of Mining Research Co. Ltd.
Glass microsphere,Chemical engineering
Patent: 8
5
State Grid Corp. of China
Electric vehicle,Power grid,Total asset,
...[+2]
Patent: 7
6
Gree Electric Appliances, Inc. of Zhuhai
Electronics,Conditioners,Air conditioning,
...[+2]
Patent: 6
7
Advanced Micro Fabrication Equipment, Inc. China
Semiconductor,Chemical vapor deposition,Microfabrication,
...[+2]
Patent: 6
8
Midea Group Co. Ltd.
Air conditioning,Electronics,Fast-moving consumer goods,
...[+2]
Patent: 5
9
Huaneng Power International, Inc.
Electronics,Power transmission,Electricity,
...[+2]
Patent: 4
10
Zhejiang Fuchunjiang Environmental Thermoelectric Co., Ltd.
Civil engineering,Power transmission,Electronics,
...[+1]
Patent: 4
11
Guangzhou Bosma Optoelectronic Technology Co. Ltd.
Computer hardware,Electronics,Semiconductor,
...[+1]
Patent: 4
12
Huaneng Clean Energy Research Institute
Petroleum coke
Patent: 4
13
Delta Electronics, Inc.
Electronics,Automation,Semiconductor,
...[+2]
Patent: 3
14
Asia Silicon (Qinghai) Co., Ltd.
Polycrystalline silicon,Semiconductor,Mining engineering,
...[+2]
Patent: 3
15
Shandong Efirm Biochemistry & Environmental Protection Co. Ltd
Environmental protection,Biochemistry
Patent: 3
16
Guizhou Power Grid Corp.
Patent: 3
17
Creating Nano Technologies, Inc.
Patent: 3
18
Suzhou Chuangrui Electromechanical Technology Co., Ltd.
Patent: 3
19
Trina Solar Co., Ltd.
Solar energy,Crystalline silicon,Renewable energy,
...[+2]
Patent: 2
20
United Microelectronics Corp.
Semiconductor,Electronics,CMOS,
...[+2]
Patent: 2
21
Kuangda Technology Group Co. Ltd.
Car seat,Neutrophil extracellular traps,Automotive engineering,
...[+2]
Patent: 2
22
Semiconductor Manufacturing International
Semiconductor,Computer hardware,Integrated circuit,
...[+2]
Patent: 2
23
ProMOS Technologies, Inc.
Semiconductor,Double data rate,Electronic component,
...[+2]
Patent: 2
24
Guangzhou Hexin Instrument Co., Ltd.
Spectrometer,Medicine,Ionization,
...[+2]
Patent: 2
25
Shanghai Huali Microelectronics Corp.
Microelectronics,Tariff,Food industry
Patent: 2
26
Jiangsu Electric Power Co.
Power transmission,Electric power transmission
Patent: 2
27
Newland Technology Group Co., Ltd.
Peripheral,Graphics processing unit,Information technology management,
...[+2]
Patent: 2
28
Commercial Aircraft Corp. of China Ltd.
Flight test,National security,Aerospace
Patent: 2
29
Wuhan Kaidi Electric Power Environmental Protection Co., Ltd.
Air pollution,Construction engineering,Wet scrubber,
...[+2]
Patent: 2
30
Nanjing Yongyan Electronic Co. Ltd.
Plasma,Electronics,Computer hardware,
...[+1]
Patent: 2
31
Suzhou Weimu Intelligent System Co., Ltd.
Drug,Chemical engineering
Patent: 2
32
Changzhou Huitian New Material Co. Ltd.
Patent: 2
33
Jiehua Holdings Co. Ltd.
Patent: 2
34
Xian Research Inst of China Coal Tech & Eng Group Corp.
Petroleum industry
Patent: 2
35
SINOPEC Shanghai Research Institute of Petrochemical Technolog
Patent: 2
36
PetroChina Co., Ltd.
Natural gas,Petroleum,Lubricant,
...[+2]
Patent: 1
37
Dehua TB New Decoration Material Co., Ltd.
Construction engineering,Wood veneer,Cork,
...[+2]
Patent: 1
38
Wuxi Little Swan Co., Ltd.
Dry cleaning,Electronics
Patent: 1
39
Jiangsu Rijiu Optoelectronics Jointstock Co. Ltd.
Semiconductor
Patent: 1
40
Heyuan Fuma Cemented Carbide Co., Ltd.
Carbide,Automation,Manufacturing engineering,
...[+2]
Patent: 1
41
Shanghai Tobacco Group Co., Ltd
Nicotiana tabacum,Cigarette filter,Tar,
...[+1]
Patent: 1
42
Automotive Engineering Corp.
Construction engineering
Patent: 1
43
Beijing NAURA Microelectronics Equipment Co., Ltd.
Computer hardware,Electronics,Etching,
...[+2]
Patent: 1
44
Shanghai Universoon Autoparts Co. Ltd.
Computer hardware,Electronics
Patent: 1
45
Tianjin Hi-Tech Environment Development Co. Ltd.
Tire recycling,Materials science,Construction engineering
Patent: 1
46
CHTC Jiahua Nonwoven Co. Ltd.
Personal care
Patent: 1
47
Metal Industries Research & Development Centre
Industry 4.0,Programmable logic controller
Patent: 1
48
Shandong Keyuan Chemical Co. Ltd.
Profenofos,Polyurethane
Patent: 1
49
Jiangsu Koner Ozone Co. Ltd.
Patent: 1
50
Shenyang Shuangding Pharmaceutical Co., Ltd.
Patent: 1
Page generation time: Jun 04 2025