Patents by Inventor Yongdun Ma

Yongdun Ma 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).

  • Lighting apparatus
    Patent number: 11085622
    Abstract: A lighting apparatus includes a light source, a driver and a manual switch. The light source includes multiple LED modules. The driver includes a converter circuit and a control circuit. The converter circuit converts an external power source to a driving current supplied to the light source. The manual switch includes a socket and a plug for a user to insert the plug into the socket for selecting a working parameter. The manual switch is connected to the driver and the control circuit of the driver controls the light source according to the working parameter.
    Type: Grant
    Filed: July 28, 2020
    Date of Patent: August 10, 2021
    Assignee: XIAMEN LEEDARSON LIGHTING CO. LTD
    Inventors: Zhenkun Huang, Shouqiang Hou, Xiaoliang Wen, Yongdun Ma, Yongzhe Dong