Polymeric artificial tear system

US9259472B2 · US · B2

Patent metadata
FieldValue
Publication numberUS-9259472-B2
Application numberUS-201414180396-A
CountryUS
Kind codeB2
Filing dateFeb 14, 2014
Priority dateApr 26, 2008
Publication dateFeb 16, 2016
Grant dateFeb 16, 2016

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  1. Title

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  2. Abstract

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  4. Key dates

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  5. First independent claim

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  7. Citations and related patents

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Abstract

Official abstract text for this publication.

The present invention relates to artificial tear formulations and ophthalmic formulations suitable for drug delivery. The formulations comprise galactomannans such as guar or hydroxypropyl guar and a borate source such as boric acid. The formulations further comprise a cis-diol such as sorbitol that interferes with the cross-linking of galactomannan and borate. Optionally, the formulations are substantially free of divalent cations.

First claim

Opening claim text (preview).

What is claimed is: 1. An ophthalmic formulation comprising a galactomannan, borate, and a cis-diol, wherein said formulation is substantially free of divalent cations, wherein said galactomannan is present at a concentration of about 0.1 w/v % to about 2.0 w/v % and said borate is present at a concentration of about 0.2 w/v % to about 2.0 w/v % and said cis-diol is sorbitol at a concentration of 0.5 to 5.0 w/v %, said formulation further comprising one or more pharmaceutically ac…

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What does patent US9259472B2 cover?
The present invention relates to artificial tear formulations and ophthalmic formulations suitable for drug delivery. The formulations comprise galactomannans such as guar or hydroxypropyl guar and a borate source such as boric acid. The formulations further comprise a cis-diol such as sorbitol that interferes with the cross-linking of galactomannan and borate. Optionally, the formulations are …
Who is the assignee on this patent?
Alcon Res Ltd
What technology area does this patent fall under?
Primary CPC classification A61K9/0048. Mapped technology areas include Human Necessities.
When was this patent published?
Publication date Tue Feb 16 2016 00:00:00 GMT+0000 (Coordinated Universal Time) (B2). Legal status and post-grant events are not shown on this page.
What related patents are in patentsdb?
We list 8 related publications on this page (citations in our corpus or others sharing the same primary CPC).