Patents/Inventors

Matthias Pfeiffer

MunichDE5 patents

5 Patents

US123252542025
Optically Variable Security Element
GIESECKE+DEVRIENT CURRENCY TECHNOLOGY GmbH
0 cites
US121573302024
Security Element with a Machine-readable Code and Method for Producing the Same
GIESECKE+DEVRIENT CURRENCY TECHNOLOGY GmbH
0 cites
US121287032024
Security Element Having Machine-readable IR Code
GIESECKE+DEVRIENT CURRENCY TECHNOLOGY GmbH
0 cites
US116182762023
Lens Pigment, Method for Producing the Same, Valuable Document and Printing Ink
GIESECKE+DEVRIENT CURRENCY TECHNOLOGY GmbH
0 cites
US116029492023
Method for Manufacturing a Value Document, Value Document and Printing Device
GIESECKE+DEVRIENT CURRENCY TECHNOLOGY GmbH
0 cites