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The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.

The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.

Patent No.:

US 7790824 B1

PDFFull Text
Date of Patent:
Sep. 07, 2010

Filed:

Jul. 24, 2008

High refractive index ophthalmic device materials

Applicant:

Charles Freeman, Granbury, TX (US);

Inventor:

Charles Freeman, Granbury, TX (US);

Assignee:

Alcon, Inc., Hunenberg, CH;

Attorney:

Patrick M. Ryan

Primary Examiner:

Mark Eashoo

Assistant Examiner:

Michael Pepitone

Int. Cl.
CPC ...
C08F 18/10 (2006.01); C08F 20/18 (2006.01); C08F 220/18 (2006.01); C08F 220/10 (2006.01); A61F 2/16 (2006.01); G02B 1/04 (2006.01);
U.S. Cl.
CPC ...
Abstract

High refractive index copolymers suitable for use in ophthalmic devices are disclosed. The copolymers comprise two or more aryl hydrophobic monomers and a non-polymerizable propylene oxide-ethylene oxide-propylene oxide block copolymer surfactant having a molecular weight of approximately 3600 and approximately 40% ethylene oxide units by weight. The copolymers have a reduced tendency to form glistenings when stored in water at physiological temperatures compared to similar copolymers lacking the non-polymerizable surfactant.

Find Patent Forward Citations

Freeman, Charles. (2010). High refractive index ophthalmic device materials (U.S. Patent No. 7790824). U.S. Patent and Trademark Office. https://idiyas.com/patent/badge/7790824

Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile

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