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Martin Witzel
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Schoenaich, DE
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Patents Grants
last 30 patents
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Patent Grant
Currency and float ID tracking in an electronic purse
Patent number
7,039,617
Issue date
May 2, 2006
International Business Machines Corporation
Hartmut Droege
G06 - COMPUTING CALCULATING COUNTING
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Patent Grant
Secure personalization of chip cards
Patent number
6,971,025
Issue date
Nov 29, 2005
International Business Machines Corporation
Harmut Droege
G06 - COMPUTING CALCULATING COUNTING
Information
Patent Grant
Method and system for the secure transmission and storage of protec...
Patent number
6,031,910
Issue date
Feb 29, 2000
International Business Machines, Corp.
Michael Deindl
G06 - COMPUTING CALCULATING COUNTING
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Patent Grant
System and method for processing long messages in a chip card
Patent number
5,809,241
Issue date
Sep 15, 1998
International Business Machines Corporation
Walter Hanel
G06 - COMPUTING CALCULATING COUNTING
Patents Applications
last 30 patents
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Patent Application
Method of accessing a shared subroutine of computer system
Publication number
20030200449
Publication date
Oct 23, 2003
International Business Machines Corporation
Hartmut Droege
G06 - COMPUTING CALCULATING COUNTING
Information
Patent Application
Method and system for securely managing EEPROM data files
Publication number
20010007108
Publication date
Jul 5, 2001
International Business Mechines Corporation
Torsten Teich
G06 - COMPUTING CALCULATING COUNTING