Alexander C. Bristol

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Miami, FL, US

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Patents Grantslast 30 patents

Information Patent Grant
Non-progressive trifocal ophthalmic lens
- Patent number 6,322,215
- Issue date Nov 27, 2001
- Alexander C. Bristol
- G02 - OPTICS
Information Patent Grant
Invisible flat-top mold blank and method for manufacturing same
- Patent number 5,147,437
- Issue date Sep 15, 1992
- Alexander C. Bristol
- B29 - WORKING OF PLASTICS WORKING OF SUBSTANCES IN A PLASTIC STATE, IN GENERAL
Information Patent Grant
Lens blank
- Patent number 5,131,738
- Issue date Jul 21, 1992
- Alexander C. Bristol
- G02 - OPTICS
Information Patent Grant
Aspheric lens blank
- Patent number 5,054,904
- Issue date Oct 8, 1991
- Alexander C. Bristol
- G02 - OPTICS
Information Patent Grant
Invisible flat-top mold blank and method for manufacturing same
- Patent number 4,883,524
- Issue date Nov 28, 1989
- Alexander C. Bristol
- B29 - WORKING OF PLASTICS WORKING OF SUBSTANCES IN A PLASTIC STATE, IN GENERAL
Information Patent Grant
Eyeglass assembly
- Patent number 4,787,730
- Issue date Nov 29, 1988
- Alexander Bristol
- G02 - OPTICS
Information Patent Grant
Aspheric spectacle lens blank
- Patent number 4,573,777
- Issue date Mar 4, 1986
- Alexander C. Bristol
- G02 - OPTICS
Information Patent Grant
Aspheric spectacle lens blank
- Patent number 4,538,887
- Issue date Sep 3, 1985
- Alexander C. Bristol
- G02 - OPTICS