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:
Dec. 10, 2024
Filed:
Nov. 19, 2012
Seb S.a., Ecully, FR;
Universite DE Lorraine, Nancy, FR;
Centre National DE LA Recherche Scientifique, Paris, FR;
Philippe Pigeat, Nancy, FR;
Jean-Francois Pierson, Vincey, FR;
Alexandre Mege-Revil, Villeneuve d'Ascq, FR;
Frederic Tessier, Beauvais, FR;
Simon Allemand, Rumilly, FR;
Stephane Tuffe, Cognin, FR;
Centre National De La Recherche Scientifique, Paris, FR;
SEB S.A., Ecully, FR;
Universite de Lorraine, Nancy, FR;
Abstract
Provided is a food cooking surface for a cookware item or an electrical household cooking appliance, consisting of a deposit of nitride of metal elements on a substrate, the metal elements of the deposit comprising one or more X transition metal(s) and aluminium. The production of the deposit comprises a nitridation step in arder to obtain a coating of type (X,Al)N. According to the invention, the (X,Al)N-type coating is a coating of nitride(s) of the one or more X transition metal(s), enriched with aluminium, in which niobium and/or zirconium is/are make up the most part of the X transition metal(s), the atomic ratio of aluminium in the metal elements of the deposit being at least equal to 20%. Also provided are cookware items and electrical household appliances intended for the cooking of food, comprising the above-mentioned type of cooking surface.