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:
Sep. 07, 2021
Filed:
Feb. 02, 2017
Guardian Glass, Llc, Auburn Hills, MI (US);
Guardian Europe S.a.r.l., Bertrange, LU;
Jian-gang Weng, Canton, MI (US);
Adam Burghardt, Monroe, MI (US);
Ting Huang, Gibraltar, MI (US);
Xuequn Hu, Northville, MI (US);
Cyrus Baker, Maumee, OH (US);
Suresh Devisetti, Canton, MI (US);
Gyorgy Vikor, Oroshaza, HU;
GUARDIAN GLASS, LLC, Auburn Hills, MI (US);
GUARDIAN EUROPE S.A.R.L., Bertrange, LU;
Abstract
A first coating is provided on a first side of a glass substrate, and a second coating is provided on a second side of the glass substrate, directly or indirectly. The coatings are designed to reduce color change of the overall coated article, from the perspective of a viewer, upon heat treatment (e.g., thermal tempering and/or heat strengthening) and/or to have respective reflective coloration that substantially compensates for each other. For instance, from the perspective of a viewer of the coated article, the first coating may experience a positive a* color value shift due to heat treatment (HT), while the second coating experiences a negative a* color shift due to the HT. Thus, from the perspective of the viewer, color change due to HT (e.g., thermal tempering) can be reduced or minimized, so that non-heat-treated versions and heat treated versions of the coated article appear similar to the viewer.