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:
Mar. 17, 2015
Filed:
Oct. 12, 2012
Applicant:
Indicator Systems International, Inc., Newport Beach, CA (US);
Inventor:
Craig Keshishian, Newport Beach, CA (US);
Assignee:
Indicator Systems International, Inc., Newport Beach, CA (US);
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
G02C 7/04 (2006.01);
U.S. Cl.
CPC ...
G02C 7/049 (2013.01);
Abstract
This invention relates to contact lenses comprising pH indicating moieties useful for determining the presence or absence of active bacterial infections wherein said pH indicator is entrapped in the lens. Other aspects relate to contact lenses comprising pH indicating moieties useful for determining the presence or absence of active bacterial infections and a biodegradable coating with a biocompatible colorant entrapped within the coating useful for determining the usable lifespan of the contact lens. Other aspects relate to methods of using such contact lenses.