Inventor
BARTH ULRICH
DE7 patents
⚠️ This page may combine multiple inventors who share the name “BARTH ULRICH”. Patents are grouped by organization below to help distinguish them — per-person disambiguation is on the roadmap.
CIT ALCATEL
5 patentsUS6126069AOct 3, 2000
Chip card, method and system for using and paying for services
CIT ALCATEL66 citations92
US6334216B1Dec 25, 2001
Access control facility for a service-on-demand system
CIT ALCATEL35 citations90
US6359924B1Mar 19, 2002
Wireless telecommunications system, base station and mobile user terminal that exchange radio signals according to a frequency hopping sequences
CIT ALCATEL16 citations79
US6741854B2May 25, 2004
Method for transferring operating parameters from a control center to a locally limited wireless telecommunications system and a corresponding wireless telecommunications system
CIT ALCATEL11 citations70
US6311062B1Oct 30, 2001
Method and telecommunications unit for establishing a telecommunications link in superposed digital radio networks
CIT ALCATEL0 citations48