Inventor · disambiguated record
Franz Weikmann
Also filed as: WEIKMANN FRANZ
4 granted patents·75 citations·filing 1995–1998
76Inventor score
Top patents by PatentIndex Score
4 records- 0153US5600818AData protective microprocessor circuit for portable data carriers, for example credit cardsGAO GES AUTOMATION ORG·Filed 1996·Granted Feb 4, 1997·54 cites·19 claims
- 0235US5763869AData carrier having an electronic moduleGIESECKE & DEVRIENT GMBH·Filed 1995·Granted Jun 9, 1998·12 cites·12 claims
- 0334US5850524AMethod for testing the authenticity of a data carrierGIESECKE & DEVRIENT GMBH·Filed 1995·Granted Dec 15, 1998·7 cites·26 claims
- 0428US7636438B1Data medium authentication methodGIESECKE & DEVRIENT GMBH·Filed 1998·Granted Dec 22, 2009·2 cites·14 claims
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