Inventor

MAYER KARLHEINZ

DE21 patents

⚠️ This page may combine multiple inventors who share the name “MAYER KARLHEINZ”. Patents are grouped by organization below to help distinguish them — per-person disambiguation is on the roadmap.

MAYER KARLHEINZ

GIESECKE & DEVRIENT GMBH

Gravure process for full printing of large surfaces

Gravure process for printing adjacent color surfaces with various color coating thicknesses

Embossed data carrier

Method and device for checking authenticity of a security element

Data carrier, method for the production thereof and gravure printing plate

Intaglio printing process for all-over printing of large areas

Data carrier with a printed security element and gravure production method thereof

Gravure process for printing adjacent color surfaces with various color coating thicknesses

Data carrier, method for the production thereof and gravure printing plate

Security element comprising a plurality of optically variable structures

Reliefed card-shaped data carrier

DEPTA GEORG

Data carrier with security element and method for the production thereof

Security document

Layer-type value document comprising an ink mixture in one layer

Value document comprising a serial number

GIESECKE & DEVRIENT CURRENCY TECHNOLOGY GMBH

Security element with effect pigments and an embossing structure and method for the production thereof

Method for manufacturing a value document, value document and printing device

(unassigned)

Process for producing dies

HEINE ASTRID

Data support with an optically variable structure

KAULE WITTICH

Papermaking mould for producing two-stage watermarks and method for producing the same

MAYER KARLHEINZ

Scanning device for barcodes