Patents by Inventor Shanfu Gao

Shanfu Gao 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).

  • Stem structure and LED lighting device
    Patent number: 10448466
    Abstract: The present invention comprises a stem structure and an LED lighting device, wherein the stem structure comprises a substrate, configured to be bent into a substrate device with a internal hollow structure, wherein a plurality of LED lamp beads and a plurality of pin needles are attached to a surface of the substrate device; a horn mouth comprising a first wide mouth portion and a first narrow mouth portion opposite to the first wide mouth portion, the first narrow mouth portion being provided with a plurality of upper guide wires for connecting to the plurality of pin needles; a plurality of lower guide wires, disposed inside the horn mouth, and configured to be connected to the plurality of upper guide wires through the first narrow mouth portion; and a glass tube disposed inside the horn mouth and attached to the plurality of lower guide wires; wherein the LED lighting device comprises a glass bulb, wherein a lamp head is disposed at an opening of the glass bulb; a driving circuit board fixedly connected t
    Type: Grant
    Filed: November 20, 2018
    Date of Patent: October 15, 2019
    Assignee: Katerra Inc.
    Inventor: Shanfu Gao
  • STEM STRUCTURE AND LED LIGHTING DEVICE
    Publication number: 20190166661
    Abstract: The present invention comprises a stem structure and an LED lighting device, wherein the stem structure comprises a substrate, configured to be bent into a substrate device with a internal hollow structure, wherein a plurality of LED lamp beads and a plurality of pin needles are attached to a surface of the substrate device; a horn mouth comprising a first wide mouth portion and a first narrow mouth portion opposite to the first wide mouth portion, the first narrow mouth portion being provided with a plurality of upper guide wires for connecting to the plurality of pin needles; a plurality of lower guide wires, disposed inside the horn mouth, and configured to be connected to the plurality of upper guide wires through the first narrow mouth portion; and a glass tube disposed inside the horn mouth and attached to the plurality of lower guide wires; wherein the LED lighting device comprises a glass bulb, wherein a lamp head is disposed at an opening of the glass bulb; a driving circuit board fixedly connected t
    Type: Application
    Filed: November 20, 2018
    Publication date: May 30, 2019
    Applicant: Katerra Inc.
    Inventor: Shanfu Gao