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US 2001/0033843 A1Published application
Coloured ophthalmic product
AssigneeNovartis AG
InventorsAnton Scherer, Peter Schwind
Life of this patent
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Abstract
The present invention is directed to an ophthalmic product comprising, as a coloring agent, the extract of an alga. A preferred class of alga the extract of which is useful in the present invention is blue alga (Spirulina type), more preferred it is Japanese blue alga (Spirulina platensis). The ophthalmic product is preferably a contact lens care product.
Claims10
An ophthalmic product comprising, as a colouring agent, the extract of an alga.
Dependencies are inferred from the claim text.