Inventor
ILGMANN WILHELM
DE4 patents
⚠️ This page may combine multiple inventors who share the name “ILGMANN WILHELM”. Patents are grouped by organization below to help distinguish them — per-person disambiguation is on the roadmap.
GAO GES AUTOMATION ORG
3 patentsUS5509691AApr 23, 1996
Security element in the form of threads or strips to be embedded in security documents and a method for producing and testing the same
GAO GES AUTOMATION ORG44 citations92
US5324079AJun 28, 1994
Security document having a security thread embedded therein
GAO GES AUTOMATION ORG27 citations92
US5112672AMay 12, 1992
Security document having an electrically conductive security element embedded therein
GAO GES AUTOMATION ORG41 citations92