Patents by Inventor Wilhemus A. deGroot

Wilhemus A. deGroot 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).

  • Patent number: 6366355
    Abstract: A method for sensing the concentrations of diatomic gases in a flow chamber is achieved by focusing an incident beam of light from a monochromatic light source on a point internal to the flow chamber through a transparent window. The incident excites molecules of the diatomic gas, resulting in emission of scattered light of particular characteristic frequency for each species of diatomic gas, due to the Raman principle. By collecting the scattered light beam from the flow chamber through the window and analyzing the intensity of the collected scattered beam at these characteristic frequencies, the relative concentrations of each of the diatomic gases may be determined.
    Type: Grant
    Filed: February 18, 2000
    Date of Patent: April 2, 2002
    Assignee: S3 Incorporated
    Inventors: Wilhemus A. deGroot, Joseph A. Powell
  • Patent number: 6046809
    Abstract: A method for sensing the concentrations of diatomic gases in a flow chamber is achieved by focusing an incident beam of light from a monochromatic light source on a point internal to the flow chamber through a transparent window. The incident excites molecules of the diatomic gas, resulting in emission of scattered light of particular characteristic frequency for each species of diatomic gas, due to the Raman principle. By collecting the scattered light beam from the flow chamber through the window and analyzing the intensity of the collected scattered beam at these characteristic frequencies, the relative concentrations of each of the diatomic gases may be determined.
    Type: Grant
    Filed: February 4, 1998
    Date of Patent: April 4, 2000
    Assignee: S3 Incorporated
    Inventors: Wilhemus A. deGroot, Joseph A. Powell