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:
Feb. 02, 2021
Filed:
Aug. 28, 2018
Applicant:
Alcon Inc., Fribourg, CH;
Inventors:
Troy Vernon Holland, Suwanee, GA (US);
Frank Chang, Cumming, GA (US);
Ryan DeSousa, Atlanta, GA (US);
Assignee:
Alcon Inc., Fribourg, CH;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
B29D 11/00 (2006.01); C08F 16/06 (2006.01); G02B 1/04 (2006.01); B29K 105/24 (2006.01); B29K 105/00 (2006.01); B29K 29/00 (2006.01);
U.S. Cl.
CPC ...
B29D 11/00134 (2013.01); B29D 11/00048 (2013.01); C08F 16/06 (2013.01); G02B 1/043 (2013.01); B29K 2029/04 (2013.01); B29K 2105/0002 (2013.01); B29K 2105/24 (2013.01);
Abstract
Described herein is a cast-molding process for producing contact lenses in a relatively short curing time. The short curing time has been achieved by adding a chain transfer agent into a lens-forming composition.