Patents by Inventor Bai-ou Guan

Bai-ou Guan 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).

  • Ultrasound sensor and ultrasound measurement device
    Patent number: 7206259
    Abstract: An ultrasound sensor consists of an optical fiber having an active portion with high birefringence and two non-active portions located at each end of the active portion. A bragg grating is provided in the fiber. An ultrasound measurement device includes an ultrasound sensor with an excitation source for the fiber and an analysis unit connected to the fiber.
    Type: Grant
    Filed: December 15, 2004
    Date of Patent: April 17, 2007
    Assignee: The Hong Kong Polytechnic University
    Inventors: Hwa-yaw Tam, Helen L. W. Chan, Bai-ou Guan
  • Ultrasound sensor and ultrasound measurement device
    Publication number: 20060126435
    Abstract: An ultrasound sensor consists of an optical fiber having an active portion with high birefringence and two non-active portions located at each end of the active portion. A bragg grating is provided in the fiber. An ultrasound measurement device includes an ultrasound sensor with an excitation source for the fiber and an analysis unit connected to the fiber.
    Type: Application
    Filed: December 15, 2004
    Publication date: June 15, 2006
    Inventors: Hwa-yaw Tam, Helen Chan, Bai-ou Guan