Inventor · disambiguated record
Michel Marco Paul Drupsteen
Also filed as: DRUPSTEEN MICHEL MARCO PAUL
5 granted patents·452 citations·filing 1997–1997
86Inventor score
Top patents by PatentIndex Score
5 records- 0173US6119945AMethod and system for storing tickets on smart cardsKONINKL KPN NV·Filed 1997·Granted Sep 19, 2000·210 cites·24 claims
- 0263US5856659AMethod of securely modifying data on a smart cardNEDERLAND PTT·Filed 1997·Granted Jan 5, 1999·53 cites·12 claims
- 0361US6073238AMethod of securely loading commands in a smart cardKONINKL KPN NV·Filed 1997·Granted Jun 6, 2000·83 cites·12 claims
- 0449US6249869B1Integrated circuit card, secure application module, system comprising a secure application module and a terminal and a method for controlling service actions to be carried out by the secure application module on the integrated circuit cardKONINK KTN N V·Filed 1997·Granted Jun 19, 2001·79 cites·15 claims
- 0538US6003776AMultiple tickets on smart cardsKONINKL KPN NV·Filed 1997·Granted Dec 21, 1999·27 cites·14 claims
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Identity basis: PatentsView inventor disambiguation (2025Q4-odp release). How scoring works →