US 8,475,691 B2Granted

UV-absorbers for ophthalmic lens materials

AssigneeNovartis AG

InventorWalter R. Laredo

Life of this patent

Estimating the term…

Novel UV absorbing monomers are disclosed. The UV absorbers are particularly suitable for use in intraocular lens materials.

Dependent claims

A UV absorber compound of the formula:

wherein
—X and G are independently H, F, Cl, Br, I, CO2H, NO2, C1-C6 linear or branched alkyl, or C1-C6 linear or branched alkoxy.

Dependencies are inferred from the claim text.

C09B 69/106
Polymeric dyes; Reaction products of dyes with monomers or with macromolecular compounds: containing an azo dye
G02B 1/043
Lenses: contact lenses
G02B 5/208
Filters: for use with infrared or ultraviolet radiation, e.g. for separating visible light from infrared and/or ultraviolet radiation
G02B 5/223
Absorbing filters: containing organic substances, e.g. dyes, inks or pigments

From the US filing history. Foreign family members aren’t listed.

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