Inventor
SCHERER MAIK RUDOLF JOHANN
DE12 patents
Patents
12 patentsUS11654709B2May 23, 2023
Optically variable security element having reflective surface region
GIESECKE & DEVRIENT CURRENCY TECHNOLOGY GMBH2 citations69
US11623465B2Apr 11, 2023
Optically variable security element having reflective surface region
GIESECKE & DEVRIENT CURRENCY TECHNOLOGY GMBH3 citations69
US11618276B2Apr 4, 2023
Lens pigment, method for producing the same, valuable document and printing ink
GIESECKE & DEVRIENT CURRENCY TECHNOLOGY GMBH0 citations61
US11702548B2Jul 18, 2023
Method for producing pigment fragments with a predefined internal and/or external contour, and pigment fragments
GIESECKE & DEVRIENT CURRENCY TECHNOLOGY GMBH0 citations59
US12129386B2Oct 29, 2024
Production of pigments having a defined size and shape
GIESECKE & DEVRIENT CURRENCY TECHNOLOGY GMBH0 citations58
US11745474B2Sep 5, 2023
Composite glass with an intermediate film that changes colour depending on the viewing angle
GIESECKE & DEVRIENT CURRENCY TECHNOLOGY GMBH0 citations58
US11802212B2Oct 31, 2023
Method for producing pigment fragments with a predefined internal and/or external contour using a crack-forming layer, and pigment fragments
GIESECKE & DEVRIENT CURRENCY TECHNOLOGY GMBH0 citations57
US11325412B2May 10, 2022
Security element comprising micro-reflectors for a perspective representation of a motif
GIESECKE & DEVRIENT CURRENCY TECHNOLOGY GMBH1 citations57
US12331464B2Jun 17, 2025
Electrically conductive paper structure, method for manufacturing same and use
GIESECKE & DEVRIENT CURRENCY TECHNOLOGY GMBH0 citations55
US12305041B2May 20, 2025
Method for producing platelet-shaped pigments
GIESECKE & DEVRIENT CURRENCY TECHNOLOGY GMBH0 citations51
US11376883B2Jul 5, 2022
Security element comprising microreflectors
GIESECKE & DEVRIENT CURRENCY TECHNOLOGY GMBH0 citations49
US11602949B2Mar 14, 2023
Method for manufacturing a value document, value document and printing device
GIESECKE & DEVRIENT CURRENCY TECHNOLOGY GMBH0 citations47