Patents by Inventor Kailash Swarna

Kailash Swarna 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).

  • Identification of unknown gases using infrared absorption spectroscopy
    Patent number: 5508525
    Abstract: A method and apparatus for identifying an unknown gas by generating an infrared spectrum of the unknown gas using an infrared spectrophotometer that includes a circular variable interference filter, compressing the infrared spectrum of the unknown gas, and comparing the compressed infrared spectrum of the unknown gas to a library of compressed infrared spectra of reference compounds. After comparison, the compressed spectra that most closely match the unknown gas are decompressed and displayed. Because frequency characteristics of circular variable interference filters vary from filter to filter, information designating these frequency characteristics for the particular filter employed are used in generating the infrared spectrum of the unknown gas.
    Type: Grant
    Filed: May 11, 1995
    Date of Patent: April 16, 1996
    Assignee: The Foxboro Company
    Inventors: Stephen Day, Kailash Swarna
  • Identification of unknown gases using infrared absorption spectroscopy
    Patent number: 5448070
    Abstract: A method and apparatus for identifying an unknown gas by generating an infrared spectrum of the unknown gas using an infrared spectrophotometer that includes a circular variable interference filter, compressing the infrared spectrum of the unknown gas, and comparing the compressed infrared spectrum of the unknown gas to a library of compressed infrared spectra of reference compounds. After comparison, the compressed spectra that most closely match the unknown gas are decompressed and displayed. Because frequency characteristics of circular variable interference filters vary from filter to filter, information designating these frequency characteristics for the particular filter employed are used in generating the infrared spectrum of the unknown gas.
    Type: Grant
    Filed: May 21, 1993
    Date of Patent: September 5, 1995
    Assignee: The Foxboro Company
    Inventors: Stephen Day, Kailash Swarna