Patents by Inventor Han Ngoc Phan

Han Ngoc Phan 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).

  • Patent number: 6544237
    Abstract: An enema apparatus, including a container for liquid, an inlet situated within the container, a first conduit connected to the inlet and passing outside the container, a hand pump connected to the first conduit, a second conduit connected to the hand pump and passing inside the container, an outlet connected to the second conduit, the outlet being situated in and passing through a side of the container, and a third conduit, having a first end connected to the outlet, and a second end connected to a syringe. When a user activates the hand pump, liquid passes from the container, through the inlet to the first conduit, through the first conduit to the hand pump, through the hand pump to the second conduit, through the second conduit to the outlet, through the outlet to the third conduit, through the third conduit to the syringe, and out the syringe.
    Type: Grant
    Filed: December 21, 2001
    Date of Patent: April 8, 2003
    Inventor: Han Ngoc Phan