Patents by Inventor Jong-gi Gwak

Jong-gi Gwak 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).

  • Fire extinguisher
    Patent number: 7080695
    Abstract: The present invention relates to a fire extinguisher, in particular, to a fire extinguisher with an observation window formed in it, allowing to observe inside thereof so that one can easily confirm with naked eyes whether the extinguishing agent filled in the main body of the fire extinguisher is of prescribed quantity, or the extinguishing agent filled in is in an intact state, i.e. not hardened.
    Type: Grant
    Filed: August 17, 2002
    Date of Patent: July 25, 2006
    Assignee: Korea Safety.com., Ltd.
    Inventor: Jong-gi Gwak
  • Fire extinguisher
    Publication number: 20050039930
    Abstract: The present invention relates to a fire extinguisher, in particular, to a fire extinguisher with an observation window formed in it, allowing to observe inside thereof so that one can easily confirm with naked eyes whether the extinguishing agent filled in the main body of the fire extinguisher is of prescribed quantity, or the extinguishing agent filled in is in an intact state, i.e. not hardened.
    Type: Application
    Filed: August 17, 2002
    Publication date: February 24, 2005
    Inventor: Jong-gi Gwak