Patents by Inventor Tze-pin Chan

Tze-pin Chan 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: 20070261700
    Abstract: In one embodiment, a vibrating condom includes a flexible, thin inner sheath; an outer tube around the sheath, the tube being thicker and less flexible than the sheath; a vibrating unit projecting on an outer surface of the tube; a battery powered power source disposed in the vibrating unit; a DC motor disposed in the vibrating unit and electrically connected to the power source for vibrating the vibrating unit; a flexible, receptacle at forward ends of the sheath and the tube, the receptacle being thinner than the sheath; and an elastic band attached to rear ends of the sheath and the tube. Another embodiment of vibrating condom with an external battery powered power source is also disclosed.
    Type: Application
    Filed: April 17, 2007
    Publication date: November 15, 2007
    Inventor: Tze-pin Chan