Patent ID: 11872188
Assignee: SCHOTT AG
Field: Materials, metallurgy (Chemistry)
Classification: CPC A  B  C  G | IPC A  B  C  G

Claim 0:
1. A method for manufacturing a glass tube semi-finished product with an apparatus, the method comprising:
providing the glass tube semi-finished product with a first marking at a first location, wherein the first marking includes information regarding at least one of origin and manufacture of the glass tube semi-finished product; and
marking the glass tube semi-finished product during formation thereof with the apparatus with a second marking at a second location, wherein the second marking includes a piece of information linked with a piece of information of the first marking;
wherein the linked pieces of information enable a determination regarding at least one of authenticity of the glass tube semi-finished product, origin of the glass tube semi-finished product, and origin of the apparatus, and wherein the first marking and the second marking were generated on the glass tube semi-finished product during formation.