Franz Weikmann

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Muchen, DE

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Patents Grantslast 30 patents

Information Patent Grant
Data medium authentication method
- Patent number 7,636,438
- Issue date Dec 22, 2009
- Giesecke & Devrient GmbH
- Michael Lamla
- G06 - COMPUTING CALCULATING COUNTING
Information Patent Grant
Method for testing the authenticity of a data carrier
- Patent number 5,850,524
- Issue date Dec 15, 1998
- Giesecke & Devrient GmbH
- Michael Lamla
- G06 - COMPUTING CALCULATING COUNTING
Information Patent Grant
Data carrier having an electronic module
- Patent number 5,763,869
- Issue date Jun 9, 1998
- Giesecke & Devrient GmbH
- Jurgen Moll
- G06 - COMPUTING CALCULATING COUNTING