Patents by Inventor Weng Lee

Weng Lee 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).

  • Dialyzer reprocessing system
    Publication number: 20050051472
    Abstract: An artificial kidney (dialyzer) reprocessing system for washing used artificial kidneys includes a high-pressure water supply system providing RO water and chemical solutions for washing and sterilization so as to make artificial kidney (dialyzers) be reused. The feature of the device is that an ozone water device is connected to an high-pressure water supply system in parallel for providing the artificial kidney (dialyzer) reprocessing device ozone water for washing and sterilization. The problem of chemical residuals in the system can also be avoided.
    Type: Application
    Filed: September 10, 2003
    Publication date: March 10, 2005
    Inventors: Willie Chionh, Foo Jin, Pen Lai, Weng Lee
  • Feedback control system for ultrasound probe
    Patent number: 6577042
    Abstract: A control system for a probe, including a transmission member, comprises a power source for supplying a constant power to a transmission member and a transducer for coupling the constant power to the transmission member and for providing a mechanical output to the transmission member at a frequency. A frequency measuring device is also provided for constantly measuring the frequency of the mechanical output of the transducer. A current monitoring device for measuring current forwarded to the transducer which monitors the current while the frequency of said mechanical output is varied until it is determined at what frequency the current is at a maximum is also provided. A method for implementing this apparatus is also provided.
    Type: Grant
    Filed: February 14, 2000
    Date of Patent: June 10, 2003
    Assignee: Angiosonics Inc.
    Inventors: Weng Lee, John Popow, Phil Bell, Uri Rosenschein, Richard Klein
  • FEEDBACK CONTROL SYSTEM FOR ULTRASOUND PROBE
    Publication number: 20030015977
    Abstract: A control system for a probe, including a transmission member, comprises a power source for supplying a constant power to a transmission member and a transducer for coupling the constant power to the transmission member and for providing a mechanical output to the transmission member at a frequency. A frequency measuring device is also provided for constantly measuring the frequency of the mechanical output of the transducer. A current monitoring device for measuring current forwarded to the transducer which monitors the current while the frequency of said mechanical output is varied until it is determined at what frequency the current is at a maximum is also provided. A method for implementing this apparatus is also provided.
    Type: Application
    Filed: February 14, 2000
    Publication date: January 23, 2003
    Inventors: WENG LEE, JOHN POPOW, PHIL BELL, URI ROSENSCHEIN, RICHARD KLEIN