Patents by Inventor Shanzhen Chen

Shanzhen Chen has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).

  • Automatic switching and failover method and system for messages and voice calls between cellular and IP networks
    Patent number: 9271127
    Abstract: A communication method for automatically switching between cellular networks and IP networks includes following steps. A mobile phone number is used as an user account. A sending user inputs or selects the user account or the mobile phone number of a receiving user on a sending client to send a message to the receiving user. If there is an user account corresponding to the mobile phone number of the receiving user registered on a server and the user account is on line, the sending client sends a message to the server via the IP networks, and the server transfers the message to a receiving client via the IP networks. If there is no user account corresponding to the mobile phone number of the receiving user registered on the server, the sending client directly sends a short message to the mobile phone number of the receiving user via the cellular networks.
    Type: Grant
    Filed: May 18, 2011
    Date of Patent: February 23, 2016
    Inventor: Shanzhen Chen
  • System and Method for Automatically Switching Based on Cellular Mobile Communication Network and Internet Protocol (IP) Network
    Publication number: 20140187240
    Abstract: A communication method for automatically switching between cellular networks and IP networks includes following steps. A mobile phone number is used as an user account. A sending user inputs or selects the user account or the mobile phone number of a receiving user on a sending client to send a message to the receiving user. If there is an user account corresponding to the mobile phone number of the receiving user registered on a server and the user account is on line, the sending client sends a message to the server via the IP networks, and the server transfers the message to a receiving client via the IP networks. If there is no user account corresponding to the mobile phone number of the receiving user registered on the server, the sending client directly sends a short message to the mobile phone number of the receiving user via the cellular networks.
    Type: Application
    Filed: May 18, 2011
    Publication date: July 3, 2014
    Inventor: Shanzhen Chen