Patent Leaderboard
USPTO Patent Rankings Data through Dec 31, 2025
Home › Antifraud method and device for a selective access system

Antifraud method and device for a selective access system

US Patent 5006698 · Granted Apr 9, 1991

Estimated economic value: $16,929,000 ⓘ

Assignee

Inventors

View full patent text on Google Patents →

More Patents by These Inventors

Systems and methods for seismic data acquisition employing asynchronous, decoupl2017
Systems and methods for seismic data acquisition employing asynchronous, decoupl2013
Sensor and recorder communication2010
Systems and methods for seismic data acquisition employing asynchronous, decoupl2010
Seismic acquisition system2009
Method of detecting fraud in electronic circuit cards used in telephony2004
Method of detecting fraud concerning electronic memory cards used in telephony2001
Method of recording successive balances in an electronic memory, and a system fo1991
Method and system for suthenticating electronic memory cards1990