Patents by Inventor Min Hung Chi

Min Hung Chi 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).

  • NOSE PLUG DEVICE HAVING AIR BREATHING STRUCTURE
    Publication number: 20020195111
    Abstract: A nose plug device includes one or two elongate members for engaging into the nostrils of the nose of a user. The elongate members each includes a check valve for allowing air to flow out of the elongate member and for preventing air or water from entering into the elongate member. The check valves each includes a forwardly curved or convex membrane having a slit for forming the check valve. The elongate members each has one or more peripheral flanges for engaging with the nose and for making a water tight seal with the nose and for securing the elongate members in the nose.
    Type: Application
    Filed: June 25, 2001
    Publication date: December 26, 2002
    Inventor: Min Hung Chi
  • Nose plug device having air breathing structure
    Patent number: 6484725
    Abstract: A nose plug device includes one or two elongate members for engaging into the nostrils of the nose of a user. The elongate members each includes a check valve for allowing air to flow out of the elongate member and for preventing air or water from entering into the elongate member. The check valves each includes a forwardly curved or convex membrane having a slit for forming the check valve. The elongate members each has one or more peripheral flanges for engaging with the nose and for making a water tight seal with the nose and for securing the elongate members in the nose.
    Type: Grant
    Filed: June 25, 2001
    Date of Patent: November 26, 2002
    Inventor: Min Hung Chi