Inventor
MARTINI ULLRICH
DE9 patents
⚠️ This page may combine multiple inventors who share the name “MARTINI ULLRICH”. Patents are grouped by organization below to help distinguish them — per-person disambiguation is on the roadmap.
GIESECKE & DEVRIENT GMBH
5 patentsUS7526653B1Apr 28, 2009
Method of data protection
GIESECKE & DEVRIENT GMBH31 citations87
US9792445B2Oct 17, 2017
Method and end device for securely inputting access code
GIESECKE & DEVRIENT GMBH2 citations69
US11315126B2Apr 26, 2022
Method for verifying the validity of a ticket; mobile device
GIESECKE & DEVRIENT GMBH0 citations48
US10237731B2Mar 19, 2019
Communication system with PKI key pair for mobile terminal
GIESECKE & DEVRIENT GMBH0 citations36
US9400901B2Jul 26, 2016
Method for operating a communication system
GIESECKE & DEVRIENT GMBH0 citations35