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.

Date of Patent:
Mar. 26, 2024

Filed:

Aug. 08, 2022
Applicant:

Comadur SA, Le Locle, CH;

Inventors:

Alexis Boulmay, Valdahon, FR;

Damien Le Boudouil, Morteau, FR;

Assignee:

Comadur SA, Le Locle, CH;

Attorney:
Primary Examiner:
Int. Cl.
CPC ...
B41M 3/14 (2006.01); C03C 15/00 (2006.01); C03C 23/00 (2006.01); C09D 1/00 (2006.01); C23C 14/06 (2006.01); C23C 16/34 (2006.01); C23C 16/513 (2006.01); G04D 3/00 (2006.01);
U.S. Cl.
CPC ...
B41M 3/14 (2013.01); C03C 15/00 (2013.01); C03C 23/0055 (2013.01); C09D 1/00 (2013.01); C23C 14/0641 (2013.01); C23C 16/34 (2013.01); C23C 16/513 (2013.01); G04D 3/0069 (2013.01); C03C 23/006 (2013.01);
Abstract

A method including obtaining an at least partially transparent object (), providing a mask () defining at least one opening () wherein the contour corresponds to a profile of the anti-counterfeit marking to be structured, the mask () covering a surface of the at least partially transparent object () at the areas not to be structured, structuring the anti-counterfeit marking by bombarding the at least partially transparent object () by an ion beam () through the at least one opening () of the mask (), the mechanical properties of the mask () being sufficient to prevent the ions of the ion beam () from etching the surface of the at least partially transparent object () at the areas where this surface is covered by the mask (), removing the mask (), and placing the at least partially transparent object () in a bath () at alkaline pH.


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