Leveraging a persistent connection to provide a client access to a secured service may include establishing a persistent connection with a client in response to a first request from the client, and brokering a connection between the client and a secured service based on a second request from the client...http://www.google.fr/patents/US7707627?utm_source=gb-gplus-shareBrevet US7707627 - Leveraging a persistent connection to access a secured service
Leveraging a persistent connection to access a secured service