Patents by Inventor Garth A. Monlux

Garth A. Monlux 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).

  • Method and apparatus for in situ gas concentration measurement
    Patent number: 6064488
    Abstract: A method and apparatus for in situ measurement of the concentration of a gas with a frequency modulated tunable diode laser is disclosed. The sampling cell, which is mounted in the flow of gases to be measured, is a Herriott cell. Gas enters the sampling cell through sintered metal filters that prevent entrance of particulates. Signals from a sample detector and a null detector are compared to eliminate interference patterns from the laser optics. High accuracy dynamic calibration of the apparatus is also disclosed.
    Type: Grant
    Filed: June 6, 1997
    Date of Patent: May 16, 2000
    Assignee: Monitor Labs, Inc.
    Inventors: Joel A. Brand, Garth A. Monlux, Patrick Zmarzly, Gregory J. Fetzer, Benjamin C. Halsted, Kenneth W. Groff, Jamine Lee, Neil Goldstein, Steven Richtsmeier, Fritz Bien