Inventor
HOFFMULLER WINFRIED
DE22 patents
⚠️ This page may combine multiple inventors who share the name “HOFFMULLER WINFRIED”. Patents are grouped by organization below to help distinguish them — per-person disambiguation is on the roadmap.
HOFFMULLER WINFRIED
8 patentsUS8964296B2Feb 24, 2015
Method for producing a microstructure on a carrier
HOFFMULLER WINFRIED23 citations91
US9399366B2Jul 26, 2016
Security element
HOFFMULLER WINFRIED9 citations83
US8534710B2Sep 17, 2013
Security element and method for manufacturing the same
HOFFMULLER WINFRIED8 citations83
US8685488B2Apr 1, 2014
Method for producing a microstructure
HOFFMULLER WINFRIED9 citations82
US9248689B2Feb 2, 2016
Method for the production of security elements having registered layers of designs
HOFFMULLER WINFRIED3 citations71
US8534709B2Sep 17, 2013
Security element and method for producing the same
HOFFMULLER WINFRIED4 citations60
US9238383B2Jan 19, 2016
Method for the production of security elements having mutually registered designs
HOFFMULLER WINFRIED0 citations39
US10046585B2Aug 14, 2018
Micro-optic viewing arrangement
HOFFMULLER WINFRIED0 citations36
GIESECKE & DEVRIENT GMBH
6 patentsUS7728931B2Jun 1, 2010
Security element and method for producing same
GIESECKE & DEVRIENT GMBH110 citations97
US7808605B2Oct 5, 2010
Sheeting and methods for the production thereof
GIESECKE & DEVRIENT GMBH62 citations96
US7667894B2Feb 23, 2010
Security element and process for producing the same
GIESECKE & DEVRIENT GMBH51 citations93
US9911074B2Mar 6, 2018
Security element for value documents
GIESECKE & DEVRIENT GMBH3 citations72
US9697456B2Jul 4, 2017
Optically variable security element
GIESECKE & DEVRIENT GMBH6 citations71
US9734735B2Aug 15, 2017
Optically variable surface pattern
GIESECKE & DEVRIENT GMBH1 citations52
GIESECKE & DEVRIENT CURRENCY TECHNOLOGY GMBH
6 patentsUS11807029B2Nov 7, 2023
Method for producing an optically variable security element
GIESECKE & DEVRIENT CURRENCY TECHNOLOGY GMBH2 citations71
US12129382B2Oct 29, 2024
Effect pigment, production method, value document and printing ink
GIESECKE & DEVRIENT CURRENCY TECHNOLOGY GMBH0 citations62
US12311692B2May 27, 2025
Optically variable security element, production process and embossing arrangement
GIESECKE & DEVRIENT CURRENCY TECHNOLOGY GMBH0 citations60
US12128704B2Oct 29, 2024
Mask exposure method, transparent conductive metallization and pigment
GIESECKE & DEVRIENT CURRENCY TECHNOLOGY GMBH0 citations58
US9840071B2Dec 12, 2017
Security element and method for producing the same
GIESECKE & DEVRIENT CURRENCY TECHNOLOGY GMBH1 citations45
US12371579B2Jul 29, 2025
Method for producing effect pigments
GIESECKE & DEVRIENT CURRENCY TECHNOLOGY GMBH0 citations38