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:
May. 13, 2025
Filed:
Aug. 24, 2023
Applicant:
Largan Medical Co., Ltd., Taichung, TW;
Inventors:
Assignee:
LARGAN MEDICAL CO., LTD., Taichung, TW;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
G02C 7/04 (2006.01);
U.S. Cl.
CPC ...
G02C 7/041 (2013.01); G02C 2202/24 (2013.01);
Abstract
A contact lens product includes a multifocal contact lens and a buffer solution. The multifocal contact lens is immersed in the buffer solution. The multifocal contact lens includes a central region and at least one annular region. The annular region concentrically surrounds the central region, and a diopter of the annular region is different from a diopter of the central region. The multifocal contact lens is made of silicone hydrogel or hydrogel. The annular region closest to a periphery of the multifocal contact lens is a first annular region.