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:
Dec. 03, 2024
Filed:
Nov. 30, 2019
Applicant:
Menicon Singapore Pte Ltd., Singapore, SG;
Inventors:
Stephen D. Newman, Singapore, SG;
Tasuku Watanabe, Singapore, SG;
Assignee:
Menicon Co., Ltd., Nagoya, JP;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
C08F 220/28 (2006.01); B29D 11/00 (2006.01); B29K 33/00 (2006.01); B29K 105/00 (2006.01); C08F 30/08 (2006.01); C08F 230/08 (2006.01); C08L 43/04 (2006.01); G02B 1/04 (2006.01); G02C 7/04 (2006.01);
U.S. Cl.
CPC ...
C08F 220/281 (2020.02); B29D 11/00038 (2013.01); C08F 30/08 (2013.01); C08F 230/08 (2013.01); C08L 43/04 (2013.01); G02B 1/04 (2013.01); G02B 1/043 (2013.01); G02C 7/04 (2013.01); B29K 2033/12 (2013.01); B29K 2105/0002 (2013.01); B29K 2105/0061 (2013.01); C08F 2800/20 (2013.01);
Abstract
A contact lens includes a body, having the plurality of monomers including at least some silicone monomer units including at least one zwitterionic distributed throughout the body. The contact lens includes a front surface and a back surface, where the silicone monomer including at least one zwitterionic group can be present in a greater concentration nearest the front surface than the back surface or a point therebetween. The contact lens can be formed by casting a polymer mixture containing the silicone monomer including at least one zwitterionic group.