Inventor
STARK MARTIN
US14 patents
⚠️ This page may combine multiple inventors who share the name “STARK MARTIN”. Patents are grouped by organization below to help distinguish them — per-person disambiguation is on the roadmap.
GIESECKE & DEVRIENT CURRENCY TECHNOLOGY GMBH
4 patentsUS11282321B2Mar 22, 2022
Optical storage phosphor, method for checking an authenticity feature, device for carrying out a method, authenticity feature and value document
GIESECKE & DEVRIENT CURRENCY TECHNOLOGY GMBH1 citations61
US10657750B2May 19, 2020
Device and method for verifying feature substances
GIESECKE & DEVRIENT CURRENCY TECHNOLOGY GMBH0 citations52
US11254159B2Feb 22, 2022
Method for securing value documents using storage phosphors
GIESECKE & DEVRIENT CURRENCY TECHNOLOGY GMBH0 citations50
US11113918B2Sep 7, 2021
Method for securing value documents using storage phosphors
GIESECKE & DEVRIENT CURRENCY TECHNOLOGY GMBH0 citations50
GIESECKE & DEVRIENT GMBH
3 patentsUS10417856B2Sep 17, 2019
Device and method for verifying feature substances
GIESECKE & DEVRIENT GMBH6 citations84
US10013835B2Jul 3, 2018
Security feature and use thereof, value document and process for verifying the authenticity thereof
GIESECKE & DEVRIENT GMBH2 citations72
US10363767B2Jul 30, 2019
Method for marking a feature substance, security feature, document of value and method for verifying said document
GIESECKE & DEVRIENT GMBH0 citations39