Inventor

SCHWENK GERHARD

DE25 patents

⚠️ This page may combine multiple inventors who share the name “SCHWENK GERHARD”. Patents are grouped by organization below to help distinguish them — per-person disambiguation is on the roadmap.

SCHWENK GERHARD

GAO GES AUTOMATION ORG

Antifalsification document having a security thread embedded therein and a method for producing the same

Security document having a security thread embedded therein and methods for producing and testing the authenticity of the security document

Process for authenticity determination of security documents with security features in the form of luminescing substances

Security paper

Security paper with authenticity features in the form of luminescing substances

Security document with security features in the form of luminescing substances

Security paper having camouflage materials to protect its authenticity features

Security paper with authenticity features

Security element in the form of threads or strips to be embedded in security documents and a method for producing and testing the same

Security document having a security thread embedded therein

Security document having an electrically conductive security element embedded therein

GIESECKE & DEVRIENT GMBH

Printed document having a value and comprising a luminescent authenticity feature based on a host lattice

Printed document having a value and comprising a luminescent authenticity feature

System for checking the security features of documents of value

Pigments and a method for producing them

Value document

Antifalsification paper provided with applied coding consisting of luminescent mottled fibers

Data carrier

Value document

Value document

Valuable document

Coding system for value documents

GLESECKE & DEVRIENT GMBH

Printed document having a value, with luminescent authenticity feature

(unassigned)

Printed document comprising a luminescent authenticity feature

SCHWENK GERHARD

Value document