Patents by Inventor Ruey-Wen Hwang

Ruey-Wen Hwang 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).

  • Apparatus of shaping a catheter tip
    Patent number: 5780073
    Abstract: A method of shaping a catheter tip and an apparatus for shaping a catheter tip are disclosed. A hollow tube is radically preheated, which is non-contact thermoforming. The heated tube is then extent outwards and next cooled. After cut, at least two catheters with taper-shaped tip are formed. The apparatus for shaping the catheter tip includes a twin taper-shaped mold wound by heating coil, a tube extending device, a cooling device and a cutting device.
    Type: Grant
    Filed: April 4, 1997
    Date of Patent: July 14, 1998
    Assignee: Industrial Technology Research Institute
    Inventors: Jui-Hsiang Chen, Shu-Fang Jiang, Ken-Yuan Chang, Ruey-Wen Hwang, Huei-Ming Ding