David Volk

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Cleveland, OH, US

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Patents Grantslast 30 patents

Information Patent Grant
Aspheric contact lens
- Patent number 4,640,595
- Issue date Feb 3, 1987
- David Volk
- G02 - OPTICS
Information Patent Grant
Method and apparatus for measuring aspheric contact lens surfaces
- Patent number 4,149,801
- Issue date Apr 17, 1979
- David Volk
- G01 - MEASURING TESTING
Information Patent Grant
Apparatus for farming ophthalmic lens for presbyopia and aphakia
- Patent number 4,050,192
- Issue date Sep 27, 1977
- David Volk
- G02 - OPTICS
Information Patent Grant
Method of forming an ophthalmic lens for presbyopia and aphakia
- Patent number 4,002,439
- Issue date Jan 11, 1977
- David Volk
- G02 - OPTICS
Information Patent Grant
Ophthalmic lens for presbyopia and aphakia
- Patent number 3,950,082
- Issue date Apr 13, 1976
- David Volk
- G02 - OPTICS