Patents by Inventor Hui-Na Mao

Hui-Na Mao 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).

  • Publication number: 20020037114
    Abstract: An expansible bag comprises a bag body and two inner leaves. The bag body is made of airtight material and provides an inner chamber therein with an inlet communicating with the external atmosphere. The inner leaves are membranes attached to an inner wall of the bag body and provide two pressing stripes at a lateral side thereof respectively in a way of keeping a respective clearance path joining a part thereof to the bag body at both lateral sides of the clearance path respectively. The respective clearance path communicates with the inlet so that the bag body can be filled with fluid.
    Type: Application
    Filed: November 13, 2001
    Publication date: March 28, 2002
    Applicant: Hui - Na MAO
    Inventors: Hui-Na Mao, Jeou Zen Yen