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.:
Date of Patent:
Sep. 02, 2014
Filed:
Feb. 24, 2012
Arthur Back, Danville, CA (US);
David Robert Morsley, Eastleigh, GB;
Richard Rogers, Eastleigh, GB;
Sarah Almond, Eastleigh, GB;
Charlie Chen, San Ramon, CA (US);
Yuwen Liu, Dublin, CA (US);
Charles A. Francis, Union City, CA (US);
YE Hong, Pleasanton, CA (US);
Arthur Back, Danville, CA (US);
David Robert Morsley, Eastleigh, GB;
Richard Rogers, Eastleigh, GB;
Sarah Almond, Eastleigh, GB;
Charlie Chen, San Ramon, CA (US);
Yuwen Liu, Dublin, CA (US);
Charles A. Francis, Union City, CA (US);
Ye Hong, Pleasanton, CA (US);
CooperVision International Holding Company, LP, St. Michael, BB;
Abstract
Silicone hydrogel contact lenses are produced without using volatile organic solvents to extract materials from the polymerized contact lens bodies, and instead are washed with aqueous liquids. The silicone hydrogel contact lenses so produced have ophthalmically wettable lens surfaces such that less than five percent of a batch of twenty or more such silicone hydrogel contact lenses have visually identifiable non-wetting spots when the contact lenses are located on eyes of subjects.