Top 20 Key Players companies in Keratometer by Highest Patent Value in the world in 2019 – Discovery

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The Keratometer top 20 is Discovery PatSnap’ annual ranking of the top 20 Highest Patent Value Keratometer Key Players in the world. Discovery has identified the top key players, startups & unicorns, fast-growings, news entrants in 2019, ranking from differnt perspectives, including patent filing intensity, academic research capability, news media heat. The company list is generated from various data types.

A keratometer, also known as an ophthalmometer, is a diagnostic instrument for measuring the curvature of the anterior surface of the cornea, particularly for assessing the extent and axis of astigmatism. It was invented by the German physiologist Hermann von Helmholtz in 1851, although an earlier model was developed in 1796 by Jesse Ramsden and Everard Home. A keratometer uses the relationship between object size (O), image size (I), the distance between the reflective surface and the object (d), and the radius of the reflective surface (R).

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Ranking:

1	Kowa Co., Ltd.	Aichi, Japan	Medicine,Medical equipment,Textile, ...[+2]	Avg patent value: 3.43 M
2	LENSAR, Inc.	United States	Medical equipment,Laser,Hospitality industry, ...[+2]	Avg patent value: 1.90 M
3	Carl Zeiss Meditec, Inc.	California, United States	Glaucoma,Medicine,Ophthalmology, ...[+2]	Avg patent value: 1.55 M
4	Visionix Ltd.	Jerusalem, Israel	Medical equipment,Wavefront,Health care, ...[+2]	Avg patent value: 1.11 M
5	OCULUS Optikgeräte GmbH	Hessen, Germany	Medical instruments,Medicine,Medical equipment, ...[+2]	Avg patent value: 620,000
6	Globechek Enterprises LLC	United States	Information technology consulting	Avg patent value: 600,000
7	Huvitz Co., Ltd.	Gyeonggi-do, South Korea	Medicine,Medical equipment,Projector, ...[+2]	Avg patent value: 213,250
8	Avedro, Inc.	Massachusetts, United States	Medical equipment,LASIK,Health care, ...[+2]	Avg patent value: 190,000
9	Ovitz Corp.	New York, United States	Vision problem,Medicine,Sight	Avg patent value: 100,000
10	Reichert, Inc.	New York, United States	Diagnostic instrument,Glaucoma,Medical equipment, ...[+2]	Avg patent value: 82,000
11	Tomey Co. Ltd.	Aichi, Japan	Medical equipment,Medicine	Avg patent value: 62,000
12	Nidek Co., Ltd.	Aichi, Japan	Surgical lasers,Medical equipment,Medicine, ...[+2]	Avg patent value: 46,000
13	EssilorLuxottica SA	Île-de-France, France	Eyewear,Product design,Health care, ...[+2]	Avg patent value: 33,000
14	Carl Zeiss Jena GmbH	Germany	Photography,Medicine,Health care	Avg patent value: 14,000
15	Canon, Inc.	Tokyo, Japan	Computer hardware,Software,Computer vision, ...[+2]	Avg patent value: 0
16	Nikon Corp.	Tokyo, Japan	Microscope,Photography,Motion capture, ...[+2]	Avg patent value: 0
17	Topcon Corp.	Tokyo, Japan	Electronics,Survey instrument,Food shortage, ...[+2]	Avg patent value: 0
18	Tomy Co., Ltd.	Tokyo, Japan	Video game	Avg patent value: 0
19	Alcon Laboratories, Inc.	Genève, Switzerland	Medical equipment,Health care,Ophthalmic drugs, ...[+2]	Avg patent value: 0
20	Keravision, Inc.	California, United States	Astigmatism,Health care,Corneal ring, ...[+2]	Avg patent value: 0