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. 15, 2026
Filed:
Aug. 18, 2021
Audi Ag, Ingolstadt, DE;
Daniel Böhm, Neuenstadt, DE;
Markus Gretzer, Eichstätt, DE;
Eva Heuberger, Ingolstadt, DE;
Jan-Philipp Weberpals, Abstatt, DE;
AUDI AG, Ingolstadt, DE;
Abstract
A method for producing a bipolar plate strand comprises: providing of the unipolar plate strands; moving of the unipolar plate strands in the direction of a roll gap of a roll pair provided with roll structures of a rolling device; sending of a laser beam of a laser device onto a rotating mirrored polygon wheel, so that the laser beam is directed at a plurality of individual positions of a surface of one or both of the unipolar plate strands and the individual positions are thus heated to a joining temperature immediately before or upon entry of the unipolar plate strands in the roll gap; and joining of the unipolar plate strands at least at one of the individual positions of the surface to form a bipolar plate strand upon transporting of the unipolar plate strands through the roll gap under the action of pressure. A method for production of a bipolar plate as well as a device to implement the method are also provided.
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile