Patent Leaderboard
USPTO Patent Rankings Data through Dec 31, 2025
Home › Secure user certification for electronic commerce employing value metering system

Secure user certification for electronic commerce employing value metering system

US Patent 6898581 · Granted May 24, 2005

Estimated economic value: $26,528,000 ⓘ

Assignee

Inventors

View full patent text on Google Patents →

More Patents by These Inventors

Degradable materials and packaging made from same2025
System and method for controlling an electrical receptacle2024
System and method for controlling an electrical receptacle2020
Method for determining a printer's signature and the number of dots per inch pri2015
Method and system for printing transaction documents using a multi-vendor secure2014
Hybrid signature scheme2014
Substitute check incorporating encoded indication of security feature in origina2014
Delivery point identity services2014
Delivery point identity services2014
Method and system for securing routing information of a communication using iden2014
System and method for authenticating indicia using identity-based signature sche2014
System and method for authenticating indicia using identity-based signature sche2014