P

Inventor

WITZEL MARTIN

DE6 patents
⚠️ This page may combine multiple inventors who share the name “WITZEL MARTIN”. Patents are grouped by organization below to help distinguish them — per-person disambiguation is on the roadmap.

IBM

4 patents
US6031910AFeb 29, 2000

Method and system for the secure transmission and storage of protectable information

IBM100 citations94
US5809241ASep 15, 1998

System and method for processing long messages in a chip card

IBM32 citations91
US6971025B1Nov 29, 2005

Secure personalization of chip cards

IBM12 citations77
US7039617B1May 2, 2006

Currency and float ID tracking in an electronic purse

IBM5 citations60

SIEMENS ENERGY GLOBAL GMBH & CO KG

1 patent
US11592281B2Feb 28, 2023

Predetermining the thickness of a coating

SIEMENS ENERGY GLOBAL GMBH & CO KG1 citations55

VOLKSWAGEN AG

1 patent
US10181006B2Jan 15, 2019

Method for producing complex products, in particular motor vehicles

VOLKSWAGEN AG0 citations39