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:
Jul. 27, 2021
Filed:
Oct. 15, 2018
Applicant:
Clearvision Sciences, Inc., Hayward, CA (US);
Inventors:
Charlie Chen, San Ramon, CA (US);
Tahua Yang, Woodridge, IL (US);
Assignee:
ARGOS VISION INC., Chicago, IL (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
B29D 11/00 (2006.01); G02C 7/10 (2006.01); G02C 7/04 (2006.01); B29K 105/00 (2006.01); B29K 33/00 (2006.01);
U.S. Cl.
CPC ...
B29D 11/00913 (2013.01); B29D 11/00038 (2013.01); G02C 7/04 (2013.01); G02C 7/108 (2013.01); B29K 2033/08 (2013.01); B29K 2105/0032 (2013.01); B29K 2823/12 (2013.01);
Abstract
A method of preparing and using a contact lens is disclosed. In one step, a light-absorbing dye solution, comprising a light-absorbing dye disposed in a solution, is dispensed onto a contact lens. In another step, the light-absorbing dye is reacted with the contact lens so that the contact lens permanently contains the light-absorbing dye. The transmission of light of a certain wavelength through the contact lens is reduced due to the reacted light-absorbing dye permanently contained within the contact lens.