Patents by Inventor Jihoi HEO

Jihoi HEO 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).

  • Method for manufacturing coal-based geopolymer foam including silica fume
    Patent number: 11939262
    Abstract: Disclosed herein are a lightweight geopolymer foam with low thermal conductivity and a manufacturing method therefor in which coal bottom ash and fly ash are used together as materials for the geopolymer foam and silica fume is added to a mixed solution of an alkali activator and sodium hydroxide. The geopolymer foam can be utilized for improving insulation performance and safety for a structure constructed with eco-friendly cement.
    Type: Grant
    Filed: March 25, 2021
    Date of Patent: March 26, 2024
    Assignee: HEUNGKUK IND.CO., LTD.
    Inventors: Keeyun Lee, Hyo Kim, Jihoi Heo
  • METHOD FOR MANUFACTURING COAL-BASED GEOPOLYMER FOAM INCLUDING SILICA FUME
    Publication number: 20230202923
    Abstract: Disclosed herein are a lightweight geopolymer foam with low thermal conductivity and a manufacturing method therefor in which coal bottom ash and fly ash are used together as materials for the geopolymer foam and silica fume is added to a mixed solution of an alkali activator and sodium hydroxide. The geopolymer foam can be utilized for improving insulation performance and safety for a structure constructed with eco-friendly cement.
    Type: Application
    Filed: March 25, 2021
    Publication date: June 29, 2023
    Applicant: HEUNGKUK IND.CO.,LTD.
    Inventors: Keeyun LEE, Hyo KIM, Jihoi HEO