Patents by Inventor Ching-Lin Liao

Ching-Lin Liao 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).

  • Laser-Based datum instrument
    Publication number: 20060016084
    Abstract: A laser-based datum instrument is disclosed. The laser-based datum instrument includes a holder for attachment to an external object. A swinging device is rotationally connected with the holder. At least one laser source is attached to the swinging device. The laser source casts a laser beam for providing a datum line.
    Type: Application
    Filed: July 24, 2004
    Publication date: January 26, 2006
    Inventors: Ching-Lin Liao, Chiu-Man Chang-Kao