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. 11, 2018
Filed:
Aug. 28, 2015
University of Maryland, College Park, College Park, MD (US);
Trustees of the Walters Art Gallery, Inc., Baltimore, MD (US);
Amy Elizabeth Marquardt, Washington, DC (US);
Eric Breitung, Washington, DC (US);
Raymond J. Phaneuf, College Park, MD (US);
Glenn Gates, Baltimore, MD (US);
Terry Weisser, Baltimore, MD (US);
University of Maryland, College Park, College Park, MD (US);
Trustees of the Walters Art Gallery, Inc., Baltimore, MD (US);
Abstract
A method of coating a metallic object with a substantially invisible protective coating, wherein the coating comprises a first layer, a second layer, and a third layer, each layer comprising a metal oxide or a nitride. The method comprises placing the object in an atomic layer deposition (ALD) reactor; depositing a first layer comprising a metal oxide or a nitride on a surface of the object by ALD; depositing a second layer comprising a metal oxide or a nitride on the first layer by ALD; and depositing a third layer comprising a metal oxide or a nitride on the second layer by ALD, thereby forming the protective coating on the object.