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. 09, 2025
Filed:
Apr. 24, 2020
Safran, Paris, FR;
Marjorie Christine Cavarroc, Moissy-Cramayel, FR;
Stéphane Knittel, Moissy-Cramayel, FR;
Jolenta Sapieha, Montreal, CA;
Ludvik Martinu, Montreal, CA;
Florence Bergeron, Montreal, CA;
Simon Loquai, Montreal, CA;
SAFRAN, Paris, FR;
Abstract
A method for forming a layer of alumina on the surface of a metal alloy substrate including aluminium, includes depositing a first aluminium layer on a surface of the metallic substrate, depositing a second layer by vapour-phase deposition on the first layer, the second layer comprising aluminium, a halogen and oxygen, and heat treatment of the substrate coated with the first and second layers under oxidising atmosphere in order to form the layer of alumina at the surface of the metallic substrate.