MD

Michel Marco Paul Drupsteen

KN Koninklijke Kpn N.V.: 2 patents #80 of 298Top 30%
KN Koninklijke Ptt Nederland N.V.: 2 patents #21 of 160Top 15%
📍 Alkmaar, NL: #11 of 153 inventorsTop 8%
Overall (All Time): #1,046,878 of 4,157,543Top 30%
5
Patents All Time

Issued Patents All Time

Showing 1–5 of 5 patents

Patent #TitleCo-InventorsDate
6249869 Integrated 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 card Albertus Feiken 2001-06-19
6119945 Method and system for storing tickets on smart cards Frank Muller 2000-09-19
6073238 Method of securely loading commands in a smart card 2000-06-06
6003776 Multiple tickets on smart cards 1999-12-21
5856659 Method of securely modifying data on a smart card Frank Muller 1999-01-05