Inventor
STEINLEIN STEPHAN
DE14 patents
⚠️ This page may combine multiple inventors who share the name “STEINLEIN STEPHAN”. Patents are grouped by organization below to help distinguish them — per-person disambiguation is on the roadmap.
GIESECKE & DEVRIENT GMBH
7 patentsUS9327542B2May 3, 2016
Value document, method for checking the presence of same and value document system
GIESECKE & DEVRIENT GMBH9 citations83
US9776450B2Oct 3, 2017
Method for checking a value document, value document, use thereof, and value document system
GIESECKE & DEVRIENT GMBH4 citations72
US10144242B2Dec 4, 2018
Method for checking a value document, value document, use thereof, and value document system
GIESECKE & DEVRIENT GMBH0 citations51
US9540771B2Jan 10, 2017
Security feature having several components
GIESECKE & DEVRIENT GMBH1 citations51
US10040995B2Aug 7, 2018
Alkali metal and alkaline earth metal niobates and tantalates as security feature substances
GIESECKE & DEVRIENT GMBH0 citations50
US9469145B2Oct 18, 2016
Security feature having several components
GIESECKE & DEVRIENT GMBH0 citations41
US9447544B2Sep 20, 2016
Security feature having several components
GIESECKE & DEVRIENT GMBH0 citations41
KECHT JOHANN
4 patentsUS9409434B2Aug 9, 2016
Security feature
KECHT JOHANN4 citations70
US8871299B2Oct 28, 2014
Solid particles having a silicate coating
KECHT JOHANN4 citations70
US9908360B2Mar 6, 2018
Security feature and method for producing a security feature
KECHT JOHANN1 citations49
US9453162B2Sep 27, 2016
Alkali metal and alkaline earth metal niobates and tantalates as security feature substances
KECHT JOHANN1 citations49
GIESECKE & DEVRIENT CURRENCY TECHNOLOGY GMBH
3 patentsUS11148447B2Oct 19, 2021
Intaglio printing ink, printing process and printed article
GIESECKE & DEVRIENT CURRENCY TECHNOLOGY GMBH1 citations62
US10576773B2Mar 3, 2020
Security element, method for producing the same and value document
GIESECKE & DEVRIENT CURRENCY TECHNOLOGY GMBH0 citations49
US12403717B2Sep 2, 2025
Method for producing a data carrier having a luminescent security element, and data carrier
GIESECKE & DEVRIENT CURRENCY TECHNOLOGY GMBH0 citations47