Top 100 Key Players companies in Ionic bonding by Most Patent Citation in the world in 2022 – Discovery

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The Ionic bonding top 100 is Discovery PatSnap’ annual ranking of the top 100 Most Patent Citation Ionic bonding Key Players in the world. 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.

Ionic bonding is a type of chemical bonding that involves the electrostatic attraction between oppositely charged ions, and is the primary interaction occurring in ionic compounds. It is one of the main bonds along with Covalent bond and Metallic bonding. Ions are atoms that have either gained or lost one or more electrons. Ions that have gained an electron are negatively charged. They are anions. Ions that have lost an electron are positively charged. They are cations. This transfer of electrons is known as electrovalence in contrast to covalence. In the simplest case, the cation is a metal atom and the anion is a nonmetal atom, but these ions can be of a more complex nature, e.g. molecular ions like NH⁺₄ or SO²⁻₄. In simpler words, an ionic bond is the transfer of electrons from a metal to a non-metal in order to obtain a full valence shell for both atoms.

1	Toyota Central R&D Labs, Inc.	Aichi, Japan	Semiconductor,Power semiconductor device,System on a chip, ...[+2]	patent citation: 540
2	Halliburton Co.	Texas, United States	Artificial lift,Natural resource management,Renewable energy, ...[+2]	patent citation: 446
3	Boehringer Mannheim GmbH	Germany		patent citation: 304
4	Carmeda AB	Sweden	Thrombosis,Medical equipment,Medicine, ...[+2]	patent citation: 270
5	Interon	RU		patent citation: 264
6	Biovector Therapeutics SA	OC, FR	Medicine	patent citation: 226
7	Milliken & Co. (South Carolina)	South Carolina, United States	Graphic design,Product design,Textile (markup language), ...[+2]	patent citation: 215
8	Panasonic Holdings Corp.	Osaka, Japan	Semiconductor,Industrial engineering,Electronics, ...[+2]	patent citation: 212
9	Matsushita Electronics Corp.	Osaka, Japan	Electronics,Computer hardware,DVD player, ...[+2]	patent citation: 212
10	Weyerhaeuser NR Co.	Washington, United States	Real estate development	patent citation: 211
11	Apro Life Science Institute, Inc.	TK, JP		patent citation: 164
12	Procter & Gamble Co.	Ohio, United States	Toothpaste,Hair conditioner,SOAP, ...[+2]	patent citation: 158
13	FUJIFILM Corp.	Tokyo, Japan	Photography,Medical imaging,Computer hardware, ...[+2]	patent citation: 142
14	Unitika Ltd.	Osaka, Japan	Fiber,Textile (markup language),Polymer, ...[+2]	patent citation: 140
15	Konica Minolta, Inc.	Tokyo, Japan	Medical imaging,Attractiveness,Product group, ...[+2]	patent citation: 138
16	Nihon Denso KK	Saitama, Japan	Manufacturing engineering,Mechanical engineering	patent citation: 135
17	Medtronic, Inc.	Minnesota, United States	Medicine,Implantable cardiac pacemaker,Biomedical engineering, ...[+2]	patent citation: 119
18	Showa Denko Materials Co., Ltd.	Tokyo, Japan	Semiconductor,Carbon product,Efficient energy use, ...[+2]	patent citation: 111
19	Hoechst AG	Hessen, Germany	Chemical engineering,Botanical drug,Herb, ...[+2]	patent citation: 102
20	Nitto Denko Corp.	Osaka, Japan	Semiconductor,Product design,Adhesive, ...[+2]	patent citation: 92
21	Kaneka Corp.	Tokyo, Japan	Synthetic rubber,Chemical engineering,Polyvinyl chloride, ...[+2]	patent citation: 87
22	Sumitomo Bakelite Co., Ltd.	Tokyo, Japan	Semiconductor,Materials science,Bakelite, ...[+2]	patent citation: 78
23	Rohm & Haas Co.	Pennsylvania, United States	Adhesive,Agriculture,Coating, ...[+2]	patent citation: 76
24	Nippon Shokubai Co., Ltd.	Tokyo, Japan	Polymer,Acrylic acid,Chemical engineering, ...[+2]	patent citation: 64
25	Hitachi Ltd.	Tokyo, Japan	Elevator,Electrical equipment,Electric motor, ...[+2]	patent citation: 59
26	DKS Co., Ltd.	Kyoto, Japan	Chemical engineering,Coating,Industrial engineering, ...[+2]	patent citation: 58
27	DENSO Corp.	Aichi, Japan	Automotive engineering,Industrial robot,Programmable logic controller, ...[+2]	patent citation: 55
28	Asahi Kasei Corp.	Tokyo, Japan	Chemical engineering,Petrochemical,Fertilizer, ...[+2]	patent citation: 50
29	Exxon Chemical Co.	Illinois, United States	Oil and gas production,Chemical engineering	patent citation: 49
30	Molecular Imprints, Inc.	Texas, United States	Biology,Computer hardware,Semiconductor, ...[+2]	patent citation: 47
31	Lucent Technologies, Inc.	New Jersey, United States	Software,Telecommunications,Private network, ...[+2]	patent citation: 46
32	Norks Hydro ASA	Oslo, Norway	Aluminium,Precious metal,Mining engineering	patent citation: 44
33	Eka Chemicals AB	Västra Götaland, Sweden	Chemical engineering,Colloidal silica,Paper chemicals, ...[+2]	patent citation: 42
34	Koninklijke DSM NV	Netherlands	Animal nutrition,Health care,Biology, ...[+2]	patent citation: 35
35	The Yokohama Rubber Co., Ltd.	Chiba, Japan	Automotive engineering,Radial tire,Tire manufacturing, ...[+2]	patent citation: 35
36	SCA Hygiene Products AB	Västra Götaland, Sweden	Hygiene,Textile (markup language),Data processing, ...[+1]	patent citation: 35
37	Golden Peanut Co.	United States		patent citation: 34
38	Sharp Corp.	Osaka, Japan	Computer hardware,Electronics,Telecommunications, ...[+2]	patent citation: 33
39	Toyobo Co., Ltd.	Osaka, Japan	Chemical engineering,Synthetic rubber,Membrane, ...[+2]	patent citation: 33
40	Biocompatibles UK Ltd.	United Kingdom		patent citation: 33
41	Kimberly-Clark Corp.	Texas, United States	Synthetic fiber,Paperboard,Fast-moving consumer goods, ...[+2]	patent citation: 32
42	Sumitomo Rubber Industries, Ltd.	Kyoto, Japan	Rubber material,Plastics engineering,Radial tire, ...[+2]	patent citation: 32
43	CMET, Inc.	Fukushima, Japan	3D printing,Lithography,Rapid prototyping, ...[+2]	patent citation: 32
44	San-Apro Ltd.	Kyoto, Japan	Organic synthesis,Drug	patent citation: 32
45	Toray Industries, Inc.	Tokyo, Japan	Fiber,Textile,Textile (markup language), ...[+2]	patent citation: 31
46	Idemitsu Kosan Co., Ltd.	Tokyo, Japan	Petrochemical,Lubricant,Petroleum, ...[+2]	patent citation: 31
47	PPG Industries, Inc.	Pennsylvania, United States	Coating,Chemical engineering,Industrial engineering, ...[+2]	patent citation: 30
48	Ricoh Co., Ltd.	Tokyo, Japan	Digital media,Data visualization,Thermal paper, ...[+2]	patent citation: 29
49	China Anhua Group Corp.	Beijing Shi, China	Agriculture,Chemical engineering	patent citation: 29
50	JSR Corp.	Tokyo, Japan	Synthetic rubber,Natural rubber,Elastomer, ...[+2]	patent citation: 28
51	Kurita Water Industries Ltd.	Rheinland-Pfalz, Germany	Water treatment,Chemical engineering,Automotive engineering, ...[+2]	patent citation: 28
52	Shell Internationale Research Maatschappij BV	Zuid-Holland, Netherlands		patent citation: 28
53	Bayer AG	Nordrhein-Westfalen, Germany	Health care,Biology,Chemical engineering, ...[+2]	patent citation: 27
54	Northrop Grumman Systems Corp.	Virginia, United States	National security,Aerospace,Military technology, ...[+1]	patent citation: 27
55	Bayer Oy	Finland		patent citation: 27
56	Chemetall Corp.	New Jersey, United States	Petrochemical,Chemical engineering	patent citation: 27
57	Seiko Epson Corp.	Nagano, Japan	Wearable technology,Projector,Electronics, ...[+2]	patent citation: 25
58	Senseonics, Inc.	United States	Monitoring system,Semiconductor,Electronics, ...[+2]	patent citation: 25
59	Fujifilm Business Innovation Corp.	Chiba, Japan	Electronics,Inkjet printing,Vertical-cavity surface-emitting laser, ...[+2]	patent citation: 24
60	Wuxi Natural Green Fiber Technology Co., Ltd.	Jiangsu Sheng, China	Fiber,Textile (markup language),Textile	patent citation: 24
61	BASF SE	Rheinland-Pfalz, Germany	Agriculture,Petrochemical,Chemical engineering, ...[+2]	patent citation: 23
62	S.T. Corp.	Tokyo, Japan	Chemical engineering,SOAP	patent citation: 23
63	OinkAndStuff		Social media,Software	patent citation: 23
64	NICHIAS Corp.	Tokyo, Japan	Thermal insulation,Industrial engineering,Gasket, ...[+2]	patent citation: 22
65	Okura Industrial Co., Ltd.	Kagawa, Japan	Plastic film,Synthetic rubber,Chemical engineering, ...[+2]	patent citation: 22
66	Kao Corp.	Tokyo, Japan	Cosmetics,Health care,Hair conditioner, ...[+2]	patent citation: 20
67	Toyota Motor Corp.	Aichi, Japan	Sport utility vehicle,Mobile device,Public transport, ...[+2]	patent citation: 19
68	Regents of The University of Michigan	Michigan, United States	Cardiovascular agent,Drug marketing,Asset management	patent citation: 19
69	AST Products, Inc.	Massachusetts, United States	Coating,Medical equipment,Medicine, ...[+2]	patent citation: 19
70	Mystic Tackleworks, Inc.	Connecticut, United States		patent citation: 19
71	Idemitsu Petrochemical Co., Ltd.	Tokyo, Japan	Petrochemical,Chemical engineering,Butene, ...[+2]	patent citation: 19
72	Ajinomoto Co., Inc.	Tokyo, Japan	Seasoning,Amino acid,Food processing, ...[+2]	patent citation: 18
73	Nippon Pillar Packing Co., Ltd.	Osaka, Japan	Fluorocarbon,Industrial engineering,Control equipment, ...[+1]	patent citation: 18
74	Ness Display Co. Ltd.	South Korea	Flat panel display,Computer hardware,Mobile device, ...[+2]	patent citation: 18
75	L'Oréal SA	Île-de-France, France	Cosmetics,Urban decay,Hair conditioner, ...[+2]	patent citation: 17
76	Canon, Inc.	Tokyo, Japan	Computer hardware,Software,Computer vision, ...[+2]	patent citation: 17
77	Teijin Ltd.	Tokyo, Japan	Synthetic rubber,Chemical engineering,Polycarbonate, ...[+2]	patent citation: 17
78	Exxon Mobil Corp.	Texas, United States	Petroleum,Petroleum industry,Chemical engineering, ...[+2]	patent citation: 16
79	Nissan Motor Co., Ltd.	Kanagawa, Japan	Truck,Public transport,Automotive engineering, ...[+2]	patent citation: 16
80	Weyerhaeuser Co.	Washington, United States	Engineered wood,Forest product,Real estate development, ...[+2]	patent citation: 16
81	Mobil Corp.	Texas, United States	Petroleum industry,Petroleum,Natural gas	patent citation: 16
82	Sony Group Corp.	Tokyo, Japan	Computer hardware,Software,Music, ...[+2]	patent citation: 15
83	Air Water, Inc.	Osaka, Japan	Industrial gas,Enterprise software,Nitrogen, ...[+2]	patent citation: 15
84	Terumo Corp.	Tokyo, Japan	Health care,Blood management,Syringe, ...[+2]	patent citation: 15
85	Toyoda Gosei Co., Ltd.	Aichi, Japan	Optoelectronics,Airbag,Synthetic rubber, ...[+2]	patent citation: 15
86	Ciba-Geigy AG	Switzerland	Botanical drug,Herb	patent citation: 15
87	Idaho Research Foundation, Inc.	Idaho, United States		patent citation: 15
88	The Dow Chemical Co.	Michigan, United States	Coating,Agriculture,Chemical engineering, ...[+2]	patent citation: 14
89	Nippon Steel Nisshin Co., Ltd.	Tokyo, Japan	Construction engineering	patent citation: 14
90	Degussa AG	Hessen, Germany	Precious metal,Chemical engineering,Nutrition, ...[+2]	patent citation: 14
91	W.C. Heraeus GmbH	Hessen, Germany	Mining engineering,Natural resource management,Beryllium, ...[+2]	patent citation: 14
92	Volvik, Inc.	South Korea	Golf Ball,sports equipment	patent citation: 13
93	Humanetics Corp.	Minnesota, United States	Clinical trial,Medicine,Health care, ...[+2]	patent citation: 13
94	American Can Co.	United States	Tin can,Packaging engineering,Microservices, ...[+1]	patent citation: 13
95	Biometrix Technology, Inc.	South Korea	Genotyping,DNA,Medical equipment, ...[+2]	patent citation: 13
96	3M Co.	Minnesota, United States	Adhesive,Electronics,Writing paper, ...[+2]	patent citation: 12
97	NEC Corp.	Tokyo, Japan	Virtualization,Big data,Network security, ...[+2]	patent citation: 12
98	Mitsui Chemicals, Inc.	Tokyo, Japan	Petrochemical,Chemical engineering,Polypropylene, ...[+2]	patent citation: 12
99	Tokuyama Corp.	Tokyo, Japan	Cement,Chemical engineering,Fumed silica, ...[+2]	patent citation: 12
100	Mitsubishi Paper Mills Ltd.	Tokyo, Japan	Paperboard,Thermal paper,3D printing, ...[+2]	patent citation: 12