Top 50 Key Players companies in Photochromic lens by Most Patent Filings in the world in 2018 – Discovery

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The Photochromic lens top 50 is Discovery PatSnap’ annual ranking of the top 50 Most Patent Filings Photochromic lens Key Players in the world. Discovery has identified the top key players, startups & unicorns, fast-growings, news entrants in 2018, ranking from differnt perspectives, including patent filing intensity, academic research capability, news media heat. The company list is generated from various data types.

Photochromic lenses are optical lenses that darken on exposure to specific types of light of sufficient intensity, most commonly ultraviolet (UV) radiation. In the absence of activating light the lenses return to their clear state. Photochromic lenses may be made of glass, polycarbonate, or another plastic. They are principally used in eyeglasses that are dark in bright sunlight, but clear in low ambient light conditions. They darken significantly within about a minute of exposure to bright light, and take somewhat longer to clear. A range of clear and dark transmittances is available.

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Ranking:

1	HOYA Corp.	Tokyo, Japan	Computer hardware,Software,Intraocular lens, ...[+2]	Patent: 53
2	Duksan Co., Ltd.	South Korea	Petroleum industry	Patent: 41
3	Tokuyama Corp.	Tokyo, Japan	Cement,Chemical engineering,Fumed silica, ...[+2]	Patent: 26
4	Corning, Inc.	New York, United States	Telecommunications,Computer hardware,Electronics, ...[+2]	Patent: 21
5	Transitions Optical, Inc.	United States	Wearable technology,Eyewear,Fast-moving consumer goods, ...[+2]	Patent: 18
6	Seiko Epson Corp.	Nagano, Japan	Wearable technology,Projector,Electronics, ...[+2]	Patent: 13
7	Kureha Corp.	Hokkaido, Japan	Chemical engineering,Polyvinylidene fluoride,Wallpaper, ...[+2]	Patent: 13
8	EssilorLuxottica SA	Île-de-France, France	Eyewear,Product design,Health care, ...[+2]	Patent: 11
9	Mitsui Chemicals, Inc.	Tokyo, Japan	Petrochemical,Chemical engineering,Polypropylene, ...[+2]	Patent: 10
10	HOYA OPTICAL LABS OF AMERICA, INC.	United States		Patent: 10
11	Bayer AG	Nordrhein-Westfalen, Germany	Health care,Biology,Chemical engineering, ...[+2]	Patent: 9
12	Sola International, Inc.	California, United States	Medical equipment,Industrial engineering	Patent: 9
13	Bayer Oy	Finland		Patent: 9
14	Insight Equity A.P.X LP	Delaware, United States	Asset management,Aerospace	Patent: 9
15	Johnson & Johnson Vision Care, Inc.	United States	Medical equipment,Health care,Optometry, ...[+2]	Patent: 8
16	Ford Motor Co. A/S	Denmark		Patent: 8
17	AO Safety Products	Massachusetts, United States	Optical instrument,Electronics,Semiconductor	Patent: 7
18	Huawei Technologies Co., Ltd.	Guangdong Sheng, China	Wireless,Software,Mobile device, ...[+2]	Patent: 6
19	Shanghai Conant Optical Co., Ltd.	Shanghai Shi, China	Spectacle lenses,Medicine,Medical equipment, ...[+1]	Patent: 6
20	Ricoh Co., Ltd.	Tokyo, Japan	Digital media,Data visualization,Thermal paper, ...[+2]	Patent: 5
21	Galvion, Inc.	Canada	Eye protection,Medical equipment,Medicine	Patent: 5
22	PPG Industries, Inc.	Pennsylvania, United States	Coating,Chemical engineering,Industrial engineering, ...[+2]	Patent: 4
23	Nikon Corp.	Tokyo, Japan	Microscope,Photography,Motion capture, ...[+2]	Patent: 4
24	Polylite Taiwan Co. Ltd.	Taiwan Province, China	Polycarbonate,Industrial engineering	Patent: 4
25	AO, Inc.	California, United States	Warehouse,Wearable technology,Medical equipment, ...[+2]	Patent: 4
26	Jiangsu Shikexincai Co., Ltd.	China		Patent: 4
27	Corning SA	FR	Computer hardware,Electronics,Semiconductor, ...[+2]	Patent: 4
28	Mitsubishi Gas Chemical Co., Inc.	Tokyo, Japan	Petroleum industry,Petrochemical,Engineering plastic, ...[+2]	Patent: 3
29	NOF Corp.	Tokyo, Japan	Organic peroxide,Chemical engineering,Fatty acid, ...[+2]	Patent: 3
30	Rodenstock GmbH	Bayern, Germany	Eyewear,Medical equipment,Glazing, ...[+2]	Patent: 3
31	Nikon-Essilor Co., Ltd.	Tokyo, Japan	Medical equipment,Semiconductor,Electronics	Patent: 3
32	Dongguan Yueheng Optical Co. Ltd.	China		Patent: 3
33	Panasonic Holdings Corp.	Osaka, Japan	Semiconductor,Industrial engineering,Electronics, ...[+2]	Patent: 2
34	Gentex Corp.	Michigan, United States	Electronics,Computer hardware,Software, ...[+2]	Patent: 2
35	Playgram Co., Ltd.	South Korea	Flexible intermediate bulk container	Patent: 2
36	Prodisc Technology, Inc.	Taiwan Province, China	Optical storage,Computer hardware,Electronics, ...[+2]	Patent: 2
37	BMC Industries, Inc.	Minnesota, United States	Computer hardware,Electronics,Semiconductor, ...[+1]	Patent: 2
38	Signet Armorlite, Inc.	California, United States	Product design,Eyewear,Photochromic lens, ...[+2]	Patent: 2
39	Zenni Optical, Inc.	California, United States	Eyewear,E-commerce,Refractive error, ...[+2]	Patent: 2
40	Carl Zeiss Vision GmbH	Germany	Vision test,Medicine	Patent: 2
41	QSpex Technologies, Inc.	United States	Medical equipment,Health care	Patent: 2
42	Matsushita Electronics Corp.	Osaka, Japan	Electronics,Computer hardware,DVD player, ...[+2]	Patent: 2
43	KOC Solution Co. Ltd.	Daejeon, South Korea	Monomer,Electronics,Semiconductor	Patent: 2
44	Jiangsu Conant Optics Co. Ltd.	China	Electronics,Semiconductor	Patent: 2
45	Shanghai Weixing Optical Co. Ltd.	Shanghai Shi, China	Medical equipment,Medicine	Patent: 2
46	Barberini GmbH	Germany	Medical equipment,Medicine	Patent: 2
47	Talex Optical Co. Ltd.	Japan		Patent: 2
48	MGC Filsheet Co., Ltd.	Japan		Patent: 2
49	Johnson & Johnson	New Jersey, United States	Health care,Medical equipment,Risperidone, ...[+2]	Patent: 1
50	General Motors Co.	Michigan, United States	Sport utility vehicle,Public transport,Enterprise software, ...[+2]	Patent: 1