Patents by Inventor Rongde Li

Rongde Li 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).

  • Exercise device for a vaginal muscle of a female
    Patent number: 7497816
    Abstract: A vaginal exercise device adapted to allow the user to perform vaginal muscle exercises, having an elastic hollow tube adapted to be inserted into a female user's vagina so that the user can exercise vaginal muscles by compressing part of the elastic hollow tube. The elastic hollow tube includes two internal chambers inside the hollow tube that are connected by at least one damping hole, such that the hollow tube is configured to offer resilient resistance to the user's vaginal compression when fluid in the tube is forced, by the user's vaginal compression, from a first one of the internal chambers, through the damping hole, into a second one of the internal chambers.
    Type: Grant
    Filed: March 22, 2004
    Date of Patent: March 3, 2009
    Inventor: Rongde Li
  • Exercise device for a vaginal muscle of a female
    Publication number: 20070111870
    Abstract: A vaginal exercise device adapted to allow the user to perform vaginal muscle exercises, having an elastic hollow tube adapted to be inserted into a female user's vagina so that the user can exercise vaginal muscles by compressing part of the elastic hollow tube. The elastic hollow tube includes two internal chambers inside the hollow tube that are connected by at least one damping hole, such that the hollow tube is configured to offer resilient resistance to the user's vaginal compression when fluid in the tube is forced, by the user's vaginal compression, from a first one of the internal chambers, through the damping hole, into a second one of the internal chambers.
    Type: Application
    Filed: March 22, 2004
    Publication date: May 17, 2007
    Inventor: Rongde Li