Patent ID: 11932445
Assignee: CORNING INCORPORATED
Field: Machine tools (Mechanical engineering)
Classification: CPC B  A  C  G  Y | IPC A  B  C  G

Claim 11:
12. A method of forming an anti-counterfeit marking in a pharmaceutical package, comprising:
focusing, using a lens having a numerical aperture of from 0.3 to 0.7, a laser at a point within a thickness of a wall of a glass body formed from an alkali-aluminosilicate glass composition prior to annealing the glass body;
operating the laser at a repetition rate of from about 80 kHz to about 300 kHz;
translating the laser along a scan path, thereby forming the anti-counterfeit marking in the pharmaceutical package;
annealing the pharmaceutical package comprising the anti-counterfeit marking; and
chemically strengthening the pharmaceutical package comprising the anti-counterfeit marking.