Patents by Inventor John Jang-Yih Un

John Jang-Yih Un 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).

  • Inflatable blasthole plug assembly
    Patent number: 10942017
    Abstract: Provided is an extensible spacer (14) for an inflatable blasthole plug (10) in the form of a collapsed bag (12). The spacer (14) includes a body (14.1) attached to the bag (12), and an associated leg formation (16) which may include leg segments (16.1, 16.2).
    Type: Grant
    Filed: November 27, 2017
    Date of Patent: March 9, 2021
    Assignee: Four Flags Pty Ltd
    Inventors: John Jang-Yih Un, Muhammad Nuer Rahman, Brian Joseph Kellett, Christopher Royce Loveland
  • INFLATABLE BLASTHOLE PLUG ASSEMBLY
    Publication number: 20190331471
    Abstract: Provided is an extensible spacer (14) for an inflatable blasthole plug (10) in the form of a collapsed bag (12). The spacer (14) includes a body (14.1) attached to the bag (12), and an associated leg formation (16) which may include leg segments (16.1, 16.2).
    Type: Application
    Filed: November 27, 2017
    Publication date: October 31, 2019
    Inventors: John Jang-Yih Un, Muhammad Nuer Rahman, Brian Joseph Kellett, Christopher Royce Loveland