A secure system and method for purchasing and payment to be used on a communication network having at least one server site (Merchant) that offers products and/or services for sale, at least one User that engages in electronic commerce with said Merchant and an Agent that acts as an intermediary between...http://www.google.es/patents/US20030120608?utm_source=gb-gplus-sharePatente US20030120608 - Secure method for purchasing and payment over a communication network and method for delivering goods anonymously
Secure method for purchasing and payment over a communication network and ...