Patents by Inventor Shu-Yen Hsieh

Shu-Yen Hsieh 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).

  • AUTOMATIC LOCAL ACCESS SURROGATE NUMBERS FOR LONG DISTANCE CALLING
    Publication number: 20100227604
    Abstract: A unique call mapping and routing device combines Voice over Internet protocol (VoIP) and public switched telephone network (PSTN) technologies such that mobile device users are able to dial international calls that are automatically and transparently directed through local access numbers using the mobile carrier PSTN network.
    Type: Application
    Filed: March 6, 2010
    Publication date: September 9, 2010
    Inventor: Cynthia Shu-Yen Hsieh
  • Machine tool having a C-shaped frame
    Patent number: 7441994
    Abstract: A machine tool includes a machine frame, a worktable, and a spindle unit. The worktable is movable on the machine frame along a first horizontal direction, a second horizontal direction perpendicular to the first horizontal direction, and a vertical direction. The spindle unit is movable on the machine frame along the vertical direction.
    Type: Grant
    Filed: April 2, 2007
    Date of Patent: October 28, 2008
    Inventor: Shu-Yen Hsieh
  • MACHINE TOOL HAVING A C-SHAPED FRAME
    Publication number: 20080236359
    Abstract: A machine tool includes a machine frame, a worktable, and a spindle unit. The worktable is movable on the machine frame along a first horizontal direction, a second horizontal direction perpendicular to the first horizontal direction, and a vertical direction. The spindle unit is movable on the machine frame along the vertical direction.
    Type: Application
    Filed: April 2, 2007
    Publication date: October 2, 2008
    Inventor: Shu-Yen Hsieh