In an HTTP client-server system, an HTTP client requests an HTML document containing a persistent display element and using components available to the HTTP client for processing HTML documents, processes the requested HTML document including instantiating an instance of the persistent display element,...http://www.google.fr/patents/US7062530?utm_source=gb-gplus-shareBrevet US7062530 - Browser with messaging capability and other persistent connections
Browser with messaging capability and other persistent connections
