Patents by Inventor T. Chang

T. Chang 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).

  • Urinary frequency and urgency treatment device
    Publication number: 20070015952
    Abstract: A medical device is used to treat bladder urgency, frequency, and discomfort. The vibrational unit and power source can be contained together or separately. This device has external and intra-cavitary usage. For intra-cavitary usage, a means to retrieve the unit is provided.
    Type: Application
    Filed: May 15, 2006
    Publication date: January 18, 2007
    Inventors: T. Chang, Luiz Silva