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:
Oct. 21, 2014
Filed:
Feb. 24, 2012
LI Yao, San Ramon, CA (US);
YE Hong, Pleasanton, CA (US);
Yuwen Liu, Dublin, CA (US);
Charlie Chen, San Ramon, CA (US);
Charles A. Francis, Union City, CA (US);
Arthur Back, Danville, CA (US);
Li Yao, San Ramon, CA (US);
Ye Hong, Pleasanton, CA (US);
Yuwen Liu, Dublin, CA (US);
Charlie Chen, San Ramon, CA (US);
Charles A. Francis, Union City, CA (US);
Arthur Back, Danville, CA (US);
CooperVision International Holding Company, LP, St. Michael, BB;
Abstract
Silicone hydrogel contact lenses that have good dimensional stability, are ophthalmically-acceptable, and can be manufactured without the use of alcohol solvents are formed from the reaction product of a polymerizable composition comprising at least one mono-functional acrylate-containing siloxane monomer having a molecular weight of less than 2,000; at least one bi-functional acrylate-containing siloxane monomer having a molecular weight of at least 3,000; and at least one hydrophilic vinyl-containing monomer, wherein the polymerizable composition has a molar ratio of total amount of mono-functional acrylate-containing siloxane monomer to total amount of bi-functional acrylate-containing siloxane monomer of at least 30:1, respectively.