Patents by Inventor Songai Tu

Songai Tu 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 chemistry analyzer
    Patent number: 6027691
    Abstract: An automatic chemistry analyzer is provided having a high throughput and a high reliability. The analyzer uses nephelometric and turbimetric analyzers to analyze a wide variety of parameters within liquid samples typically generated in, for example, a large medical testing laboratory. The machine employs a unique probe and stirring rod assembly mounted at a slight angle with one another using rack and pinion assemblies so that the lower end of the probe and the lower end of the stirring rod are in very close proximity to one another. This feature allows the machine to be used in unusually small reaction cuvettes. The analysis machine also includes an onboard control sample so that the machine can be programmed to periodically calibrate its analyzing equipment during the course of normal operation.
    Type: Grant
    Filed: August 13, 1998
    Date of Patent: February 22, 2000
    Assignee: Beckman Coulter, Inc.
    Inventors: Richard P. Watts, David L. Goodale, Dang M. Ngo, Songai Tu, Michael Tran, Michael L. Bell
  • Automatic chemistry analyzer
    Patent number: 5902548
    Abstract: An automatic chemistry analyzer is provided having a high throughput and a high reliability. The analyzer uses nephelometric and turbimetric analyzers to analyze a wide variety of parameters within liquid samples typically generated in, for example, a large medical testing laboratory. The machine employs a unique probe and stirring rod assembly mounted at a slight angle with one another using rack and pinion assemblies so that the lower end of the probe and the lower end of the stirring rod are in very close proximity to one another. This feature allows the machine to be used in unusually small reaction cuvettes. The analysis machine also includes an onboard control sample so that the machine can be programmed to periodically calibrate its analyzing equipment during the course of normal operation.
    Type: Grant
    Filed: August 13, 1998
    Date of Patent: May 11, 1999
    Assignee: Beckman Instruments, Inc.
    Inventors: Richard P. Watts, David L. Goodale, Michael L. Bell, Dang M. Ngo, Songai Tu, Michael Tran
  • Automatic chemistry analyzer
    Patent number: 5807523
    Abstract: An automatic chemistry analyzer is provided having a high throughput and a high reliability. The analyzer uses nephelometric and turbimetric analyzers to analyze a wide variety of parameters within liquid samples typically generated in, for example, a large medical testing laboratory. The machine employs a unique probe and stirring rod assembly mounted at a slight angle with one another using rack and pinion assemblies so that the lower end of the probe and the lower end of the stirring rod are in very close proximity to one another. This feature allows the machine to be used in unusually small reaction cuvettes. The analysis machine also includes an onboard control sample so that the machine can be programmed to periodically calibrate its analyzing equipment during the course of normal operation.
    Type: Grant
    Filed: July 3, 1996
    Date of Patent: September 15, 1998
    Assignee: Beckman Instruments, Inc.
    Inventors: Richard P. Watts, David L. Goodale, Dang M. Ngo, Songai Tu, Michael Tran, Michael L. Bell