Patents by Inventor Dufeng He

Dufeng He 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).

  • Transaction method, and transaction system and device
    Publication number: 20160005102
    Abstract: Disclosed are a transaction method, and a transaction system and device.
    Type: Application
    Filed: July 18, 2013
    Publication date: January 7, 2016
    Inventors: Dufeng He, Guohe Liang, Dejuan Feng