Patent · US Active

Ionic silicone hydrogels

US9125808B2 · kind B2 · utility

87Cited by

28References

92Claims

0Family size

Assignee

Johnson & Johnson Vision Care, Inc. · US

Inventors

Azaam Alli · Jacksonville, US
James D. Ford · Franklin, US
Douglas G. Vanderlaan · Jacksonville, US
Scott L. Joslin · Ponte Vedra, US
Shivkumar Mahadevan · Orange Park, US
Thomas L. Maggio · Jacksonville, US
Ranganath Raja · Jacksonville, US
Sharmila Muthukrishnan · Geleen, NL
C. Surendran · Udhagamandalam, IN
R. Sridharan · Viralimalai, IN

Key dates

Filing date	Mar 14, 2013
Grant date	Sep 8, 2015
Priority date	—
Expiry date	Jun 20, 2033

Classification

Technology area (CPC C)Chemistry; Metallurgy
CPC primaryC08G77/16
WIPO fieldPharmaceuticals
WIPO sectorChemistry

Abstract

The present invention relates to ionic silicone hydrogel contact lenses which comprise at least one pharmaceutical or nutriceutical component and are formed from reaction mixtures comprising a mixture of slow-reacting hydrophilic monomers, including at least one slow-reacting ionic monomer, at least one silicone-containing component and at least one hydroxyl-containing component, wherein the ratio of the slow-reacting hydrophilic component half lives to the silicone-containing component half life is at least 2.

Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.