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:
Oct. 11, 2022
Filed:
Jun. 22, 2020
Nano and Advanced Materials Institute Limited, Hong Kong, HK;
Pui Keong Chow, Hong Kong, HK;
Faan Fung Hung, Hong Kong, HK;
Chenmin Liu, Hong Kong, HK;
Chi Ho Kwok, Hong Kong, HK;
Nano and Advanced Materials Institute Limited, Hong Kong, HK;
Abstract
A visible light activated ink that produces a color change when exposed to visible light is provided. The ink includes a visible light activated photochromic compound, one or more binders, additives including one or more surfactants, and a solvent. The visible light activated ink is substantially colorless in the as-deposited state and requires a visible light intensity of approximately 300 W/mor greater at a wavelength of approximately 400-700 nm to produce a color change.
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile