In a method for managing a time-limited license on a computer application that can be run on a network component, a license data record is created that contains at least information concerning the computer application to be licensed, a license period and a signing time. The license data record is read...http://www.google.co.uk/patents/US7890429?utm_source=gb-gplus-sharePatent US7890429 - Method for managing a time-limited license on a computer application that can be run on a network component