Patents by Inventor Li-Ru Cheng

Li-Ru Cheng 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).

  • Battery charging and handling system for electric vehicles
    Patent number: 6094028
    Abstract: A selective-type battery charging and transferring system for electric vehicle uses a discretionary scheme rather than conventional continuous scheme and select the fully-charged battery to load on the transfer stage. The electric vehicle can be ensured to load with the most fully charged battery, thus eliminates the difficulty caused by the charging time difference.
    Type: Grant
    Filed: July 1, 1999
    Date of Patent: July 25, 2000
    Assignee: Industrial Technology Research Institute
    Inventors: Huan-Lung Gu, Tseng-Teh Wei, Li-Ru Cheng