Patents by Inventor Thayananthan Narayanan

Thayananthan Narayanan 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 gas sensor calibration system
    Publication number: 20040055359
    Abstract: An automatic system for calibrating gas sensors comprising a source of SPAN gas and a source of ZERO gas, and a means to control the flow of these gases to sensors. The system schedules and makes all required sensor value corrections and adjustments without human intervention. High resolution monitoring enables life extensions for the sensors, as well as higher accuracy monitoring than would be reasonably expected from low cost sensors.
    Type: Application
    Filed: August 14, 2003
    Publication date: March 25, 2004
    Applicant: REL-TEK
    Inventors: Albert E. Ketler, Bradley H. Baker, Thayananthan Narayanan, Lauren E. Sargent, Ronald C. Smathers, Ehren R. Graber