Top 100 Fast-growings companies in Polystyrene by Most Patent Filing In 3 Years in the world in 2021 – Discovery

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The Polystyrene top 100 is Discovery PatSnap’ annual ranking of the top 100 Most Patent Filing In 3 Years Polystyrene Fast-growings 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.

Polystyrene (PS) /ˌpɒliˈstaɪriːn/ is a synthetic aromatic hydrocarbon polymer made from the monomer styrene. Polystyrene can be solid or foamed. General-purpose polystyrene is clear, hard, and rather brittle. It is an inexpensive resin per unit weight. It is a rather poor barrier to oxygen and water vapour and has a relatively low melting point. Polystyrene is one of the most widely used plastics, the scale of its production being several million tonnes per year. Polystyrene can be naturally transparent, but can be coloured with colourants. Uses include protective packaging (such as packing peanuts and CD and DVD cases), containers, lids, bottles, trays, tumblers, disposable cutlery and in the making of models.

1	LG Chem Ltd.	South Korea	Petrochemical,Synthetic rubber,Health care, ...[+2]	Patent: 71
2	Kingfa Sci. & Tech. Co., Ltd.	Guangdong Sheng, China	Alloy,Synthetic rubber,Chemical engineering, ...[+2]	Patent: 46
3	China Petroleum & Chemical Corp.	Beijing Shi, China	Petrochemical,Petroleum,Enterprise software, ...[+2]	Patent: 35
4	GreenMantra Recycling Technologies Ltd.	Ontario, Canada	Chemical engineering	Patent: 31
5	Gunze Ltd.	Osaka, Japan	Textile,Suture (anatomy),Semiconductor, ...[+2]	Patent: 30
6	BASF SE	Rheinland-Pfalz, Germany	Agriculture,Petrochemical,Chemical engineering, ...[+2]	Patent: 29
7	Toyobo Co., Ltd.	Osaka, Japan	Chemical engineering,Synthetic rubber,Membrane, ...[+2]	Patent: 25
8	Sumitomo Chemical Co., Ltd.	Tokyo, Japan	Petrochemical,Agriculture,Pesticide, ...[+2]	Patent: 24
9	Daicel Corp.	Chiba, Japan	Airbag,Chemical engineering,Cellulose acetate, ...[+2]	Patent: 24
10	Sekisui Kasei Co., Ltd.	Osaka, Japan	Civil engineering,Chemical engineering,Health care, ...[+2]	Patent: 24
11	Bridgestone Corp.	Tokyo, Japan	Automotive engineering,sports equipment,Natural rubber, ...[+2]	Patent: 23
12	Idemitsu Kosan Co., Ltd.	Tokyo, Japan	Petrochemical,Lubricant,Petroleum, ...[+2]	Patent: 22
13	Kaneka Corp.	Tokyo, Japan	Synthetic rubber,Chemical engineering,Polyvinyl chloride, ...[+2]	Patent: 21
14	Mitsubishi Engineering-Plastics Corp.	Tokyo, Japan	Polycarbonate,Polybutylene terephthalate,Chemical engineering, ...[+2]	Patent: 20
15	Hodogaya Chemical Co., Ltd.	Tokyo, Japan	Pigment,Chemical engineering,Functional polymers, ...[+2]	Patent: 19
16	Kuraray Co., Ltd.	Tokyo, Japan	Synthetic rubber,Isoprene,Vinyl acetate, ...[+2]	Patent: 19
17	Kraton Polymers Research BV	Netherlands		Patent: 18
18	Asahi Kasei Corp.	Tokyo, Japan	Chemical engineering,Petrochemical,Fertilizer, ...[+2]	Patent: 18
19	Mitsui Chemicals, Inc.	Tokyo, Japan	Petrochemical,Chemical engineering,Polypropylene, ...[+2]	Patent: 17
20	JSR Corp.	Tokyo, Japan	Synthetic rubber,Natural rubber,Elastomer, ...[+2]	Patent: 17
21	JSP Corp.	Tokyo, Japan	Polystyrene,Bead,Polyethylene, ...[+2]	Patent: 17
22	Lotte Chemical Corp.	South Korea	Petrochemical,Chemical engineering,Polyethylene, ...[+2]	Patent: 17
23	Zhejiang University	Zhejiang Sheng, China	Pinyin,Educational institution,Cancer immunotherapy, ...[+2]	Patent: 17
24	Mitsubishi Petrochemical Co. Ltd.	Japan	Petrochemical,Chemical engineering	Patent: 16
25	3M Innovative Properties Co.	Minnesota, United States	Intellectual property,Product design	Patent: 16
26	South China University of Technology	Guangdong Sheng, China	Power semiconductor device,Semiconductor,Science park, ...[+2]	Patent: 16
27	Southeast University	Jiangsu Sheng, China	Mechanical engineering,Molecular beam epitaxy,Retinitis, ...[+2]	Patent: 15
28	Covestro Deutschland AG	Nordrhein-Westfalen, Germany	Polymer,Synthetic rubber,Chemical engineering, ...[+1]	Patent: 15
29	Fuzhou University	Jiangxi Sheng, China	Pinyin,MicroLED,Solid-state battery, ...[+2]	Patent: 14
30	Sika Technology AG	Switzerland		Patent: 14
31	Shin-Etsu Chemical Co., Ltd.	Tokyo, Japan	Silicone,Semiconductor,Chemical engineering, ...[+2]	Patent: 14
32	Soochow University	Jiangsu Sheng, China	Academic Training,Educational institution,Graduate degree, ...[+2]	Patent: 14
33	FUJIFILM Corp.	Tokyo, Japan	Photography,Medical imaging,Computer hardware, ...[+2]	Patent: 14
34	The Chemours Company FC LLC	OH, US	Agrochemical,Pesticide,Chemical engineering	Patent: 13
35	Donghua University	Shanghai Shi, China	Military science,Materials science,Academic achievement, ...[+2]	Patent: 13
36	INEOS Styrolution Group GmbH	Hessen, Germany	Styrene,Polystyrene,Industrial engineering, ...[+2]	Patent: 13
37	Zhejiang University of Technology	Zhejiang Sheng, China	Pinyin,Mainland China,Chemistry, ...[+2]	Patent: 13
38	Guangdong University of Technology	Guangdong Sheng, China	Pinyin,Computer science,Materials science, ...[+2]	Patent: 13
39	Kraton Polymers U.S. LLC	Texas, United States	Adhesive,Chemical engineering,Elastomer, ...[+2]	Patent: 13
40	Mitsubishi Gas Chemical Co., Inc.	Tokyo, Japan	Petroleum industry,Petrochemical,Engineering plastic, ...[+2]	Patent: 13
41	Dalian University of Technology	Liaoning Sheng, China	Revocation,Materials science,Chemistry, ...[+2]	Patent: 12
42	Total Petrochemicals & Refining USA, Inc.	Texas, United States	Polyethylene,Chemical engineering,Polystyrene, ...[+2]	Patent: 12
43	East China University of Science & Technology	Shanghai Shi, China	Syngas,Biomass,Biofuel, ...[+2]	Patent: 12
44	Jiangnan University	Jiangsu Sheng, China	Pinyin,Chemistry,Biochemistry, ...[+2]	Patent: 11
45	Central South University	Fujian Sheng, China	Metallurgy,Solid-state battery,Lithium-ion battery, ...[+2]	Patent: 11
46	Sinopec Beijing Research Institute of Chemical Industry	Beijing Shi, China	Petrochemical,Methanation,Ethylene oxide, ...[+2]	Patent: 11
47	Silkroad C&TCo., Ltd.	South Korea	Chemical engineering	Patent: 11
48	Tosoh Corp.	Tokyo, Japan	Petrochemical,Chemical engineering,Immunoprotein, ...[+2]	Patent: 11
49	Nitto Shinko Corp.	Japan	Industrial engineering	Patent: 11
50	Hangzhou Dianzi University	Zhejiang Sheng, China	Pinyin,High-electron-mobility transistor,Public university, ...[+2]	Patent: 11
51	Shaanxi University of Science & Technology	Shaanxi Sheng, China	Materials science,Composite material,Chemistry, ...[+2]	Patent: 10
52	Jilin University	Jilin Sheng, China	Pinyin,Coronavirus,Jurisdiction, ...[+2]	Patent: 10
53	Tianjin University	Guangdong Sheng, China	Radio-frequency identification,Coronavirus disease 2019 (COVID-19),Pinyin, ...[+2]	Patent: 10
54	Shandong University	Shandong Sheng, China	Pinyin,Public university,Coronavirus, ...[+2]	Patent: 10
55	Ningxia Ruyi Technology Fashion Industry Co., Ltd.	China		Patent: 10
56	Wuhan University of Technology	Hubei Sheng, China	Materials science,Composite material,Computer science, ...[+2]	Patent: 10
57	Guangzhou University	Guangdong Sheng, China	Pinyin,Computer science,Chemistry, ...[+2]	Patent: 10
58	Nitto Denko Corp.	Osaka, Japan	Semiconductor,Product design,Adhesive, ...[+2]	Patent: 10
59	Qingdao University of Science & Technology	Fujian Sheng, China	Pinyin,Chemical industry,Chemistry, ...[+2]	Patent: 10
60	Yangzhou University	Jiangsu Sheng, China	Pinyin,Biology,Chemistry, ...[+2]	Patent: 9
61	Saudi Arabian Oil Co.	Saudi Arabia	Natural gas,Petrochemical,Petroleum industry, ...[+2]	Patent: 9
62	Beijing University of Chemical Technology	Beijing Shi, China	Chemical engineering,Biology,Pinyin, ...[+2]	Patent: 8
63	DIC Corporation		Pigment,Polymer,Epoxy, ...[+2]	Patent: 8
64	Nanjing University	Jiangsu Sheng, China	Pinyin,Public university,Chemistry, ...[+2]	Patent: 8
65	Shanghai Kingfa Sci. & Tech. Dvpt. Co., Ltd.	Shanghai Shi, China		Patent: 8
66	Indian Oil Corp. Ltd.	Delhi, India	Petroleum,Petroleum industry,Fast-moving consumer goods, ...[+2]	Patent: 8
67	Toray Industries, Inc.	Tokyo, Japan	Fiber,Textile,Textile (markup language), ...[+2]	Patent: 8
68	Changzhou University	Jiangsu Sheng, China		Patent: 8
69	Jiangsu Kingfa Sci. & Tech. Advanced Materials Co., Ltd.	Jiangsu Sheng, China		Patent: 8
70	Hebei University of Science & Technology	Hebei Sheng, China	Chemistry,Computer science,Materials science, ...[+2]	Patent: 8
71	DIC Corp.	Tokyo, Japan	Pigment,Chemical engineering,Synthetic resin, ...[+2]	Patent: 8
72	University of Sao Paulo	São Paulo, Brazil	Public university,Travatan Z,Active ingredient, ...[+2]	Patent: 8
73	Merck Patent GmbH	Hessen, Germany		Patent: 8
74	STARTUP Polystyvert, Inc.	Quebec, Canada	Plastics engineering,Waste management,Concentrator, ...[+2]	Patent: 8
75	Nanjing Tech University	Jiangsu Sheng, China	Pinyin,Materials science,Chemistry, ...[+2]	Patent: 8
76	Dainippon Printing Co. Ltd.	Japan		Patent: 7
77	Changchun Inst of Applied Chem Chinese Academy of Sciences	China		Patent: 7
78	Sekisui Chemical Co., Ltd.	Osaka, Japan	Synthetic rubber,Industrial engineering,Polyvinyl chloride, ...[+2]	Patent: 7
79	Zhejiang Sci-Tech University	Zhejiang Sheng, China	Pinyin,Materials science,Chemistry, ...[+2]	Patent: 7
80	Dai Nippon Printing Co., Ltd.	Tokyo, Japan	Electronics,Publishing,Publication, ...[+2]	Patent: 7
81	University of Electronic Science & Technology of China	Sichuan Sheng, China	Power semiconductor device,Semiconductor,Molecular beam epitaxy, ...[+2]	Patent: 7
82	Shanghai Jiao Tong University	Shanghai Shi, China	CONTEST,Biological membrane,Biofabrication, ...[+2]	Patent: 7
83	KASK SpA	Lombardia, Italy	Cycling	Patent: 7
84	University of Science & Technology Beijing	Beijing Shi, China	Metallurgy,Pinyin,Materials science, ...[+2]	Patent: 7
85	Sinopec Baling Yingshan Petrochemical Plant	China		Patent: 7
86	Cytec Industries, Inc.	New Jersey, United States	Aerospace materials,Chemical engineering,Synthetic rubber, ...[+2]	Patent: 7
87	Xi'an Technological University	Shaanxi Sheng, China	The Internet,Educational institution,Graduate degree, ...[+2]	Patent: 7
88	Mitsui Mining & Smelting Co., Ltd.	Tokyo, Japan	Precious metal,Metal,Cathode material, ...[+2]	Patent: 7
89	Uniwersytet Jagiellonski	Poland		Patent: 7
90	Hefei Genius Advanced Material Co., Ltd.	Anhui Sheng, China	Genius	Patent: 7
91	University of Science & Technology of China	Anhui Sheng, China	Chemistry,Materials science,Computer science, ...[+2]	Patent: 7
92	Jiangsu University	Guangdong Sheng, China	Doctoral research,Pinyin,Materials science, ...[+2]	Patent: 7
93	Toyo Ink SC Holdings Co., Ltd.	Hokkaido, Japan	Pigment,Manufacturing engineering,Coating, ...[+2]	Patent: 6
94	Rogers Corp.	Connecticut, United States	Electronics,Industrial engineering,Electronic component, ...[+2]	Patent: 6
95	University Of Jinan	Shandong Sheng, China	Pinyin,Chemistry,Materials science, ...[+2]	Patent: 6
96	Hiroshima University	Hiroshima, Japan	Educational institution,Test-driven development,5G, ...[+2]	Patent: 6
97	Golden Phoenix Fiberwebs, Inc.	Taiwan Province, China	Nonwoven fabric,Textile (markup language)	Patent: 6
98	Xi'an Jiaotong University	Hunan Sheng, China	Materials science,Computer science,Composite material, ...[+2]	Patent: 6
99	AGC	Tokyo, Japan	Fluorine,Glazing,Chemical engineering, ...[+2]	Patent: 6
100	USEON (Nanjing) Extrusion Machinery Co., Ltd.	Jiangsu Sheng, China		Patent: 6