Top 100 Key Players companies in Greenhouse effect by Most Patent Filings in the world in 2021 – Discovery

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The Greenhouse effect top 100 is Discovery PatSnap’ annual ranking of the top 100 Most Patent Filings Greenhouse effect Key Players in the world. Discovery has identified the top key players, startups & unicorns, fast-growings, news entrants in 2021, ranking from differnt perspectives, including patent filing intensity, academic research capability, news media heat. The company list is generated from various data types.

The greenhouse effect is the process by which radiation from a planet's atmosphere warms the planet's surface to a temperature above what it would be without this atmosphere. Radiatively active gases (i.e., greenhouse gases) in a planet's atmosphere radiate energy in all directions. Part of this radiation is directed towards the surface, warming it. The intensity of the downward radiation – that is, the strength of the greenhouse effect – will depend on the atmosphere's temperature and on the amount of greenhouse gases that the atmosphere contains.

1	AGC	Tokyo, Japan	Fluorine,Glazing,Chemical engineering, ...[+2]	Patent: 27
2	Asahi Fiber Glass Co., Ltd.	Tokyo, Japan	Glass wool,Thermal insulation,Fiber, ...[+2]	Patent: 27
3	Gree Electric Appliances, Inc. of Zhuhai	Guangdong Sheng, China	Electronics,Conditioners,Air conditioning, ...[+2]	Patent: 14
4	Showa Denko K.K.	Chiba, Japan	Graphite,Materials science,Nanomaterials, ...[+2]	Patent: 11
5	Siemens AG	Bayern, Germany	Power transmission,Electronics,Turbine, ...[+2]	Patent: 10
6	Siemens SA	Madrid, Spain	Scientific Control,Telecommunications,Turbine, ...[+1]	Patent: 10
7	Research Institute of Innovative Technology for the Earth	Kyoto, Japan		Patent: 9
8	Jiangxi Tianyu Chemical Co. Ltd.	China		Patent: 9
9	TOSHIBA Corp.	Tokyo, Japan	Semiconductor,Computer hardware,Electronics, ...[+2]	Patent: 8
10	Sharp Corp.	Osaka, Japan	Computer hardware,Electronics,Telecommunications, ...[+2]	Patent: 8
11	Tokyo Electron Ltd.	Tokyo, Japan	Semiconductor,Power transmission,Flat panel display, ...[+2]	Patent: 8
12	Sinochem Lantian Co., Ltd.	Zhejiang Sheng, China	Petrochemical,Fluorite,Chemical engineering, ...[+1]	Patent: 8
13	Hitachi Ltd.	Tokyo, Japan	Elevator,Electrical equipment,Electric motor, ...[+2]	Patent: 7
14	State Grid Corp. of China	Beijing Shi, China	Electric vehicle,Power grid,Total asset, ...[+2]	Patent: 7
15	Mitsubishi Kogyo KK	Japan		Patent: 7
16	Zhejiang Lantian Environmental Protection HI Tech Co. Ltd.	China	Refrigerant,Fluorine,Chemical engineering, ...[+2]	Patent: 7
17	Central Glass Co., Ltd.	Tokyo, Japan	Glazing,Fine chemical,Chemical engineering, ...[+2]	Patent: 6
18	The Agricultural Gas Co.	California, United States	Agriculture,Renewable energy,Farming industry, ...[+2]	Patent: 6
19	Metal Industries Research & Development Centre	Taiwan Province, China	Industry 4.0,Programmable logic controller	Patent: 6
20	Rem Technology, Inc.	Canada		Patent: 6
21	Integrated Packaging Australia Pty Ltd.	Australia		Patent: 6
22	Saipem SpA	Lombardia, Italy	Offshore drilling,Petroleum industry,Construction engineering, ...[+2]	Patent: 5
23	Kobe Steel, Ltd.	Hyogo, Japan	Welding,Electronics,Mining engineering, ...[+2]	Patent: 4
24	Toppan, Inc.	Tokyo, Japan	Publishing,Semiconductor,Electronics, ...[+2]	Patent: 4
25	China Petroleum & Chemical Corp.	Beijing Shi, China	Petrochemical,Petroleum,Enterprise software, ...[+2]	Patent: 4
26	E.I. du Pont de Nemours & Co.	Delaware, United States	Agriculture,Materials science,Electronics, ...[+2]	Patent: 4
27	Beijing Creative Distribution Automation Co., Ltd.	Beijing Shi, China	Clinical trial,Electrical equipment,Enterprise software, ...[+2]	Patent: 4
28	Kanto Denka Kogyo Co., Ltd.	Tokyo, Japan	Carbon monoxide,Electrolytic process,Petroleum industry, ...[+2]	Patent: 4
29	Dairei Co., Ltd.	Tokyo, Japan	Food industry,Health care,Food processing, ...[+2]	Patent: 4
30	Beijing Gas Group Co., Ltd.	Beijing Shi, China	Technology transfer,Petroleum industry,Natural gas	Patent: 4
31	Zhejiang Chem-Tech Group Co. Ltd.	Zhejiang Sheng, China	Automation,Mechanical engineering,Manufacturing engineering, ...[+1]	Patent: 4
32	Navitime Japan Co. Ltd.	Tokyo, Japan	Navigation system,Location-based service,Mobile phone	Patent: 4
33	Nihon Denso KK	Saitama, Japan	Manufacturing engineering,Mechanical engineering	Patent: 4
34	Laboratorio Pablo Cassara Srl	AR	Medicine	Patent: 4
35	Zhuhai Yinlong Energy Co. Ltd.	China		Patent: 4
36	NEC Corp.	Tokyo, Japan	Virtualization,Big data,Network security, ...[+2]	Patent: 3
37	Seiko Epson Corp.	Nagano, Japan	Wearable technology,Projector,Electronics, ...[+2]	Patent: 3
38	Tosoh Corp.	Tokyo, Japan	Petrochemical,Chemical engineering,Immunoprotein, ...[+2]	Patent: 3
39	Tokyo Gas Co., Ltd.	Tokyo, Japan	Natural gas,Hydrogen chloride,Petroleum industry, ...[+2]	Patent: 3
40	NICHIAS Corp.	Tokyo, Japan	Thermal insulation,Industrial engineering,Gasket, ...[+2]	Patent: 3
41	Taiwan Cement Corp.	Taiwan Province, China	Cement,Construction engineering,Materials science, ...[+2]	Patent: 3
42	Japan Energy Corp.	Tokyo, Japan	Petroleum,Petroleum industry,Liquefied petroleum gas, ...[+2]	Patent: 3
43	Advanced Industrial Science & Technology	Tokyo, Japan	Graphene,Association (object-oriented programming)	Patent: 3
44	Dongguan Zelong Wire & Cable Co. Ltd.	China		Patent: 3
45	Solar Reactor Technologies, Inc.	United States	Electrolysis	Patent: 3
46	Agriplast SpA	Ragusa, Italy	Polyethylene	Patent: 3
47	Sinopec Beijing Research Institute of Chemical Industry	Beijing Shi, China	Petrochemical,Methanation,Ethylene oxide, ...[+2]	Patent: 3
48	Nihon Freezer Co. Ltd.	Japan		Patent: 3
49	Shanghai Dongda Polyurethane Co., Ltd.	Shanghai Shi, China		Patent: 3
50	Ausimont SpA	Italy	Chemical engineering	Patent: 3
51	Kaysersberg Packaging SA	FR	Plastic film,Rod	Patent: 3
52	Illinois Tool Works, Inc.	Illinois, United States	Adhesive,Consumables,Industrial engineering, ...[+2]	Patent: 2
53	Toyota Motor Corp.	Aichi, Japan	Sport utility vehicle,Mobile device,Public transport, ...[+2]	Patent: 2
54	Sony Group Corp.	Tokyo, Japan	Computer hardware,Software,Music, ...[+2]	Patent: 2
55	DENSO Corp.	Aichi, Japan	Automotive engineering,Industrial robot,Programmable logic controller, ...[+2]	Patent: 2
56	DAIKIN INDUSTRIES Ltd.	Osaka, Japan	Air conditioning,Refrigeration,Mechanical engineering, ...[+2]	Patent: 2
57	Mitsubishi Materials Corp.	Tokyo, Japan	Cement,Alloy,Polycrystalline silicon, ...[+2]	Patent: 2
58	Osaka Gas Co., Ltd.	Osaka, Japan	Natural gas,Activated carbon,Petroleum industry, ...[+2]	Patent: 2
59	Sichuan Kelun Pharmaceutical Co., Ltd.	Sichuan Sheng, China	Software,Human nutrition,Parenteral nutrition, ...[+2]	Patent: 2
60	Sumitomo Forestry Co., Ltd.	Tokyo, Japan	Forestry,Forest product,Reforestation, ...[+2]	Patent: 2
61	Kuraray Co., Ltd.	Tokyo, Japan	Synthetic rubber,Isoprene,Vinyl acetate, ...[+2]	Patent: 2
62	China Petrochemical Development Corp.	Taiwan Province, China	Petrochemical,Chemical engineering,Engineering plastic, ...[+2]	Patent: 2
63	China XD Electric Co., Ltd.	Shaanxi Sheng, China	Power transmission,Electrical equipment,Transformer, ...[+2]	Patent: 2
64	Takenaka Corp.	Osaka, Japan	Construction engineering,Site location,Masonry, ...[+2]	Patent: 2
65	Yamato Corp.	Osaka, Japan	Construction engineering,Food distribution,Sanitation, ...[+2]	Patent: 2
66	Canon Marketing Japan, Inc.	Tokyo, Japan	Power transmission,Electronics,Software, ...[+2]	Patent: 2
67	METAWATER Co., Ltd.	Tokyo, Japan	Cloud database,Construction engineering,Waste management, ...[+2]	Patent: 2
68	China National Offshore Oil Corp.	Beijing Shi, China	Natural gas,China sea,Petroleum industry, ...[+2]	Patent: 2
69	Pliant LLC	Indiana, United States	Plastic bag,Microservices,Packaging engineering	Patent: 2
70	Houpu Clean Energy Group Co., Ltd.	Sichuan Sheng, China	Fuel dispenser,Petroleum industry,Natural gas, ...[+2]	Patent: 2
71	Meiji Seika Kaisha Ltd.	Tokyo, Japan	Veterinary medicine,Food industry,Snack foods, ...[+1]	Patent: 2
72	Meiji Seika Pharma Co., Ltd.	Tokyo, Japan	Clinical trial,Drug,Medicine, ...[+2]	Patent: 2
73	CO2 Solutions, Inc.	Quebec, Canada	Carbon,Refrigeration,Enzyme, ...[+2]	Patent: 2
74	Kobelco Eco-Solutions Co., Ltd.	Fukuoka, Japan	Excavator,Bulky waste,Cooling tower, ...[+2]	Patent: 2
75	Eneos Corp.	Tokyo, Japan	Petroleum,Lubricant,Petroleum industry, ...[+2]	Patent: 2
76	Daikin Airconditioning France SAS	Osaka, Japan	Industrial engineering,Fluorochemical industry,Air conditioning, ...[+1]	Patent: 2
77	JG Environmental Technology Co., Ltd.	Taiwan Province, China	Automation,Manufacturing engineering,Industrial engineering, ...[+2]	Patent: 2
78	Energy Technologies, Inc.	Massachusetts, United States	Electronics,Telecommunications	Patent: 2
79	Bay Environmental Technology (Beijing) Corp.	Beijing Shi, China	Environmental consulting,Environmental technology,Environmental protection, ...[+2]	Patent: 2
80	Jupiter Oxygen Corp.	Illinois, United States	Jupiter,Oxygen,Carbon dioxide	Patent: 2
81	Guodian Science & Technology Research Institute Co., Ltd.	Jiangsu Sheng, China	Research development	Patent: 2
82	Ouro Fino Participações e Empreendimentos SA	Brazil	Chemical engineering	Patent: 2
83	Valeo Thermal Systems Japan Corp.	Tokyo, Japan	Thermal,Automation,Manufacturing engineering, ...[+2]	Patent: 2
84	Chicago Climate Exchange, Inc.	Illinois, United States	Greenhouse gas reduction,Public sector	Patent: 2
85	Mitsubishi Materials Techno Corp.	Japan		Patent: 2
86	Shanghai Yuanhan Energy Technology Co., Ltd.	Shanghai Shi, China	Chemical engineering	Patent: 2
87	Wuxi Fangsheng Heat Exchanger Co., Ltd.	Jiangsu Sheng, China	Heat exchanger,Mechanical engineering,Manufacturing engineering	Patent: 2
88	JX Nippon Oil & Energy Marine Service Corp.	Japan	Lubricant,Grease,p-Xylene, ...[+2]	Patent: 2
89	Stecol Corp.	Tianjin Shi, China	Hydropower,Power transmission	Patent: 2
90	Usines De Rosieres SA	France	Automation,Mechanical engineering,Manufacturing engineering, ...[+1]	Patent: 2
91	Jiangsu Leke Energy Conservation Technology Co., Ltd.	Jiangsu Sheng, China	Energy conservation,Computer hardware,Electronics	Patent: 2
92	Xi'an Thermal Power Research Institute Co., Ltd.	Shaanxi Sheng, China		Patent: 2
93	Shanghai Huanqiu Refrigeration Equipment Co. Ltd.	China		Patent: 2
94	TCL Air Conditioner (Zhongshan) Co., Ltd.	China	Conditioners,Chiller,Automation, ...[+2]	Patent: 2
95	Mitsubishi Electric Engineering Co., Ltd.	Tokyo, Japan		Patent: 2
96	Baoding Baoling Transformer Co. Ltd.	Hebei Sheng, China	Semiconductor,Transformer,Electronics, ...[+1]	Patent: 2
97	Shanghai Hualin Industrial Gas Co., Ltd.	Shanghai Shi, China	Industrial gas,Hydroponics,Carbon monoxide, ...[+1]	Patent: 2
98	Abengoa Bioenergia Nuevas Tecnologias SA	AN, ES	Chemical engineering	Patent: 2
99	Cnooc Research Institute Co. Ltd.	Beijing Shi, China		Patent: 2
100	China Railway Design Group Co., Ltd.	China		Patent: 2