Patents by Inventor Andreas Gunawan

Andreas Gunawan 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).

  • Device for firmly attaching human-waste-collection bags to the abdomen by using suction ring(s)
    Patent number: 6679866
    Abstract: A device for firmly attaching human-waste-collection bags to the abdomen by using suction rings instead of adhesives. This device comprises of a cap (10) with suction rings, a round plastic sheet (11), a plastic bag (15), and a belt holder(14). A round body (12) of rigid material is used to sandwich the plastic sheet and bag by using the cap (10) at its front end. This device also has a belt holder (14) with a center hole (28) that fits on the rear ring surface (26) of the body (12). This belt holder is equipped with a regular elastic belt for pressing the overall devise firmly against the abdomen.
    Type: Grant
    Filed: January 14, 2000
    Date of Patent: January 20, 2004
    Inventor: Andreas Gunawan