Patents by Inventor Yao-Yu Liu

Yao-Yu Liu 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).

  • Structure finger strengthening device
    Patent number: 7160228
    Abstract: An improved structure finger strengthening device, the design of which features elastic components installed between upper and lower housings and finger sleeves. The fingers of the user are inserted into the finger sleeves, the fingers then forced outward and relaxed inward for conditioning and drilling. At the same time, the present invention provides for simple assembly and component replacement.
    Type: Grant
    Filed: February 7, 2005
    Date of Patent: January 9, 2007
    Inventor: Yao-Yu Liu
  • Structure finger strengthening device
    Publication number: 20060178247
    Abstract: An improved structure finger strengthening device, the design of which features elastic components installed between upper and lower housings and finger sleeves. The fingers of the user are inserted into the finger sleeves, the fingers then forced outward and relaxed inward for conditioning and drilling. At the same time, the present invention provides for simple assembly and component replacement.
    Type: Application
    Filed: February 7, 2005
    Publication date: August 10, 2006
    Inventor: Yao-Yu Liu