Inventor
WEIKMANN FRANZ
DE4 patents
⚠️ This page may combine multiple inventors who share the name “WEIKMANN FRANZ”. Patents are grouped by organization below to help distinguish them — per-person disambiguation is on the roadmap.
GIESECKE & DEVRIENT GMBH
3 patentsUS5850524ADec 15, 1998
Method for testing the authenticity of a data carrier
GIESECKE & DEVRIENT GMBH7 citations70
US5763869AJun 9, 1998
Data carrier having an electronic module
GIESECKE & DEVRIENT GMBH12 citations70
US7636438B1Dec 22, 2009
Data medium authentication method
GIESECKE & DEVRIENT GMBH2 citations59