Wilhelm Ilgmann

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Wolfratshausen, DE

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Patents Grantslast 30 patents

Information Patent Grant
Method for equipping papers of value with authenticity features
- Patent number 5,897,746
- Issue date Apr 27, 1999
- Giesecke & Devrient, GmbH
- Thomas Attenberger
- D21 - PAPER-MAKING PRODUCTION OF CELLULOSE
Information Patent Grant
Security element in the form of threads or strips to be embedded in...
- Patent number 5,509,691
- Issue date Apr 23, 1996
- G.A.O. Gesellschaft fur Automation und Organisation mbH
- Wittich Kaule
- B42 - BOOKBINDING ALBUMS FILES SPECIAL PRINTED MATTER
Information Patent Grant
Security document having a security thread embedded therein
- Patent number 5,324,079
- Issue date Jun 28, 1994
- G.A.O. Gesellschaft fur Automation und Organisation mbH
- Wittich Kaule
- B42 - BOOKBINDING ALBUMS FILES SPECIAL PRINTED MATTER
Information Patent Grant
Security document having an electrically conductive security elemen...
- Patent number 5,112,672
- Issue date May 12, 1992
- G.A.O. Gesellschaft fur Automation und Organisation mbH
- Wittich Kaule
- D21 - PAPER-MAKING PRODUCTION OF CELLULOSE