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. 24, 2026
Filed:
Nov. 17, 2022
Applicant:
Whirlpool Corporation, Benton Harbor, MI (US);
Inventors:
Margherita Basso, Varese Lombardy, IT;
Ermanno Buzzi, Varese Lombardy, IT;
Christine Nortey, Milan, IT;
Assignee:
Whirlpool Corporation, Benton Harbor, MI (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
F24C 15/00 (2006.01); C03C 17/25 (2006.01); C03C 17/30 (2006.01); H05B 3/74 (2006.01);
U.S. Cl.
CPC ...
F24C 15/005 (2013.01); C03C 17/25 (2013.01); C03C 17/30 (2013.01); H05B 3/74 (2013.01); C03C 2217/77 (2013.01); C03C 2218/112 (2013.01); C03C 2218/113 (2013.01); C03C 2218/33 (2013.01);
Abstract
A cooking appliance with a cooktop includes a glass-ceramic substrate with a top surface for receiving cookware thereon for heating. The surface includes a coating formed by applying a sol-gel coating to the surface after the surface is roughened to increase the surface roughness of the top surface and improve adhesion of the coating thereon. The sol-gel coating forms a matte finish on the cooktop while having anti-stick properties for cleanability.