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. 31, 2026
Filed:
Sep. 09, 2022
Reinz-dichtungs-gmbh, Neu-Ulm, DE;
Edda Gallmeier, Neu-Ulm, DE;
Bernd Gaugler, Ulm, DE;
Sebastian Scheeler, Stuttgart, DE;
Stephan Wenzel, Pfaffenhofen, DE;
Lisa Jerg, Neu-Ulm, DE;
REINZ-DICHTUNGS-GMBH, Neu-Ulm, DE;
Abstract
A metal separator plate for an electrochemical system, having at least a first laser-surface-treated region with a first passivation layer and a second region with a native or reconstructed passivation layer, wherein, as a result of the laser surface treatment, the first passivation layer has: a charge carrier density that is increased by at least 10%, and a surface area that is no more than 5% larger in relation to the native or reconstructed passivation layer. The present disclosure further relates to methods for producing and characterizing such a separator plate.