Patents by Inventor Steven K. Isvik

Steven K. Isvik 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).

  • Apparatus and method for measuring the concentration of gases in a sterilization chamber
    Patent number: 7880887
    Abstract: Accurate measurements of the concentration of a sterilant in a sterilization chamber are provided through the use of a light source, a first detector that receives light from the light source that has not passed through the sterilization chamber and a detector that receives light from the light source that has passed through the sterilization chamber. The light contains wavelengths known to be absorbed by the sterilant. A controller receives and processes signals received from the two detectors to cancel changes in the output of the light source and then apply a modified Beer-Lambert law to determine the concentration of the sterilant gas.
    Type: Grant
    Filed: August 29, 2008
    Date of Patent: February 1, 2011
    Assignee: Phygen, Inc.
    Inventors: Steven J. Olson, Jami McLaren, Steven K. Isvik
  • Apparatus and method for measuring the concentration of gases in a sterilization chamber
    Publication number: 20100053621
    Abstract: Accurate measurements of the concentration of a sterilant in a sterilization chamber are provided through the use of a light source, a first detector that receives light from the light source that has not passed through the sterilization chamber and a detector that receives light from the light source that has passed through the sterilization chamber. The light contains wavelengths known to be absorbed by the sterilant. A controller receives and processes signals received from the two detectors to cancel changes in the output of the light source and then apply a modified Beer-Lambert law to determine the concentration of the sterilant gas.
    Type: Application
    Filed: August 29, 2008
    Publication date: March 4, 2010
    Applicant: Phygen, Inc. d/b/a Sterilucent, Inc.
    Inventors: Steven J. Olson, Jami McLaren, Steven K. Isvik