Patents by Inventor Qingwu MAO

Qingwu MAO 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).

  • Patent number: 11739889
    Abstract: A lamp base holder, a lamp, and a method for adjusting an angle of a lamp body are provided. The lamp base holder includes a lamp base neck, a lamp cap, and a fixing pin. The fixing pin penetrates the lamp base neck and the lamp cap. The lamp base neck is provided with a first circuit board and a second circuit board. The first circuit board is provided with a first conductive region. The second circuit board is provided with a second conductive region. A first propping pin is connected to the lamp cap or the fixing pin. One end of the first propping pin is constantly abutted against the first conductive region. A second propping pin is further connected to the lamp cap or the fixing pin. One end of the second propping pin is constantly abutted against the second conductive region.
    Type: Grant
    Filed: October 3, 2022
    Date of Patent: August 29, 2023
    Assignee: MATIC LIGHTING TECHNOLOGY (SHANGHAI) CO., LTD.
    Inventors: Kian-Cheong Hong, Qingwu Mao
  • Publication number: 20230118442
    Abstract: A lamp base holder, a lamp, and a method for adjusting an angle of a lamp body are provided. The lamp base holder includes a lamp base neck, a lamp cap, and a fixing pin. The fixing pin penetrates the lamp base neck and the lamp cap. The lamp base neck is provided with a first circuit board and a second circuit board. The first circuit board is provided with a first conductive region. The second circuit board is provided with a second conductive region. A first propping pin is connected to the lamp cap or the fixing pin. One end of the first propping pin is constantly abutted against the first conductive region. A second propping pin is further connected to the lamp cap or the fixing pin. One end of the second propping pin is constantly abutted against the second conductive region.
    Type: Application
    Filed: October 3, 2022
    Publication date: April 20, 2023
    Applicant: MATIC LIGHTING TECHNOLOGY(SHANGHAI) CO.,LTD.
    Inventors: Kian-Cheong Hong, QINGWU MAO
  • Publication number: 20180153009
    Abstract: A drive circuit is configured to electrically connect a LED lamp module to a ballast, which is a high-intensity discharge lamp constant-wattage autotransformer ballast. The drive circuit has a bridge rectifier, and a reactor element electrically connected to the bridge rectifier, wherein the bridge rectifier consists of four rectifiers connected in a loop. The bridge rectifier has two AC inputs and two DC outputs. The DC outputs are connected to two ends of an LED lamp module. The two AC inputs are electrically connected to the outputs of the ballast with a series inductor, a series capacitor or a parallel inductor.
    Type: Application
    Filed: November 27, 2017
    Publication date: May 31, 2018
    Inventors: Jianchang XIONG, Qingwu MAO