A method of providing a document to a client coupled to a server is provided. The server provides a number of Internet services to the client, including functioning as a caching proxy on behalf of the client for purposes of accessing the World Wide Web. The proxying server includes a persistent document...http://www.google.de/patents/US5918013?utm_source=gb-gplus-sharePatent US5918013 - Method of transcoding documents in a network environment using a proxy server
