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:
Jul. 15, 2022
Saint-gobain Glass France, Courbevoie, FR;
Cécile Ozanam, Palaiseau, FR;
Florian Bigourdan, Paris, FR;
SAINT-GOBAIN GLASS FRANCE, Courbevoie, FR;
Abstract
A method for separating a laminated glass panel including a film and at least two glass sheets, with the film being interposed between the two glass sheets, the method including weakening the mechanical properties of the panel using the energy of a laser beam along a predetermined separation line, by guiding the laser beam along the separation line, the separation line separating the panel into at least two pieces, wherein a laser device is used to provide the laser beam, the laser device providing a Bessel laser beam with a wavelength to which the glass sheets and the interlayer are transparent, wherein the length of the laser beam is at least equal to 80% of the thickness of the panel and the ratio of the scanning speed to the operating frequency is a value between two and seven times the diameter of the central lobe of the Bessel beam.