Inventor
RAHM MICHAEL
DE31 patents
⚠️ This page may combine multiple inventors who share the name “RAHM MICHAEL”. Patents are grouped by organization below to help distinguish them — per-person disambiguation is on the roadmap.
GIESECKE & DEVRIENT CURRENCY TECHNOLOGY GMBH
12 patentsUS10525758B2Jan 7, 2020
Security element, value document comprising such a security element, and method for producing such a security element
GIESECKE & DEVRIENT CURRENCY TECHNOLOGY GMBH5 citations73
US11654709B2May 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
US12472763B2Nov 18, 2025
Security element as well as value document having such a security element
GIESECKE & DEVRIENT CURRENCY TECHNOLOGY GMBH0 citations62
US12129382B2Oct 29, 2024
Effect pigment, production method, value document and printing ink
GIESECKE & DEVRIENT CURRENCY TECHNOLOGY GMBH0 citations62
US11034182B2Jun 15, 2021
Disc-shaped pigment, printing ink, security element and method of production
GIESECKE & DEVRIENT CURRENCY TECHNOLOGY GMBH0 citations60
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
US11745474B2Sep 5, 2023
Composite glass with an intermediate film that changes colour depending on the viewing angle
GIESECKE & DEVRIENT CURRENCY TECHNOLOGY GMBH0 citations58
US10625532B2Apr 21, 2020
Security element
GIESECKE & DEVRIENT CURRENCY TECHNOLOGY GMBH0 citations52
US10134109B2Nov 20, 2018
Depiction arrangement
GIESECKE & DEVRIENT CURRENCY TECHNOLOGY GMBH1 citations52
US11602949B2Mar 14, 2023
Method for manufacturing a value document, value document and printing device
GIESECKE & DEVRIENT CURRENCY TECHNOLOGY GMBH0 citations47
US12472764B2Nov 18, 2025
Optically variable security element and value document with the optically variable security element
GIESECKE & DEVRIENT CURRENCY TECHNOLOGY GMBH0 citations41
FUHSE CHRISTIAN
5 patentsUS9827802B2Nov 28, 2017
Security element, value document comprising such a security element, and method for producing such a security element
FUHSE CHRISTIAN25 citations93
US9176266B2Nov 3, 2015
Security element, value document comprising such a security element and method for producing such a security element
FUHSE CHRISTIAN20 citations91
US9274258B2Mar 1, 2016
Thin-layer element having an interference layer structure
FUHSE CHRISTIAN12 citations83
US10870305B2Dec 22, 2020
Security element as well as value document having such a security element
FUHSE CHRISTIAN5 citations72
US9987875B2Jun 5, 2018
Optically variable security element with tilt image
FUHSE CHRISTIAN0 citations40