Inventor
KECHT JOHANN
DE29 patents
⚠️ This page may combine multiple inventors who share the name “KECHT JOHANN”. Patents are grouped by organization below to help distinguish them — per-person disambiguation is on the roadmap.
GIESECKE & DEVRIENT GMBH
12 patentsUS10417856B2Sep 17, 2019
Device and method for verifying feature substances
GIESECKE & DEVRIENT GMBH6 citations84
US9327542B2May 3, 2016
Value document, method for checking the presence of same and value document system
GIESECKE & DEVRIENT GMBH9 citations83
US10013835B2Jul 3, 2018
Security feature and use thereof, value document and process for verifying the authenticity thereof
GIESECKE & DEVRIENT GMBH2 citations72
US9776450B2Oct 3, 2017
Method for checking a value document, value document, use thereof, and value document system
GIESECKE & DEVRIENT GMBH4 citations72
US9542788B2Jan 10, 2017
Value document and method for checking the presence of the same
GIESECKE & DEVRIENT GMBH2 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
US9540772B2Jan 10, 2017
Value document and method for checking the presence of the same
GIESECKE & DEVRIENT GMBH1 citations51
US10040995B2Aug 7, 2018
Alkali metal and alkaline earth metal niobates and tantalates as security feature substances
GIESECKE & DEVRIENT GMBH0 citations50
US9581540B2Feb 28, 2017
Spectral luminescence standard for the near infrared region
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
GIESECKE & DEVRIENT CURRENCY TECHNOLOGY GMBH
12 patentsUS12194772B2Jan 14, 2025
Valuable document system
GIESECKE & DEVRIENT CURRENCY TECHNOLOGY GMBH2 citations74
US11148447B2Oct 19, 2021
Intaglio printing ink, printing process and printed article
GIESECKE & DEVRIENT CURRENCY TECHNOLOGY GMBH1 citations62
US11148457B2Oct 19, 2021
Value document having security marking with varying decay time and method for identifying the security marking
GIESECKE & DEVRIENT CURRENCY TECHNOLOGY GMBH0 citations62
US10995231B2May 4, 2021
Security pigment, luminescent polymer resin and method for producing same
GIESECKE & DEVRIENT CURRENCY TECHNOLOGY GMBH0 citations59
US10988629B2Apr 27, 2021
Core-shell particle-based security pigment and method for production thereof
GIESECKE & DEVRIENT CURRENCY TECHNOLOGY GMBH1 citations59
US10657750B2May 19, 2020
Device and method for verifying feature substances
GIESECKE & DEVRIENT CURRENCY TECHNOLOGY GMBH0 citations52
US10479123B1Nov 19, 2019
Security feature and document of value
GIESECKE & DEVRIENT CURRENCY TECHNOLOGY GMBH0 citations51
US10953684B2Mar 23, 2021
Pigment system, luminescent dye system, and value document
GIESECKE & DEVRIENT CURRENCY TECHNOLOGY GMBH0 citations49
US10576773B2Mar 3, 2020
Security element, method for producing the same and value document
GIESECKE & DEVRIENT CURRENCY TECHNOLOGY GMBH0 citations49
US10870307B2Dec 22, 2020
Security pigment based on core-shell particles, and production method
GIESECKE & DEVRIENT CURRENCY TECHNOLOGY GMBH0 citations48
US10821766B2Nov 3, 2020
Core-shell particle-based security pigment, and production method
GIESECKE & DEVRIENT CURRENCY TECHNOLOGY GMBH0 citations48
US12403717B2Sep 2, 2025
Method for producing a data carrier having a luminescent security element, and data carrier
GIESECKE & DEVRIENT CURRENCY TECHNOLOGY GMBH0 citations47
KECHT JOHANN
5 patentsUS9409434B2Aug 9, 2016
Security feature
KECHT JOHANN4 citations70
US8871299B2Oct 28, 2014
Solid particles having a silicate coating
KECHT JOHANN4 citations70
US10981406B2Apr 20, 2021
Security feature
KECHT JOHANN0 citations49
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