Patents by Inventor Ruby N. Ghosh

Ruby N. Ghosh 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).

  • Optical sensor and sensing system for oxygen monitoring in fluids using molybdenum cluster phosphorescence
    Patent number: 10520435
    Abstract: A composite comprises a polymer matrix and a luminophore dispersed therein. The composite is useful as a sensing film that is used as an optical sensor for oxygen measurement comprising the composite sensing film; a source of photons for photo-exciting the luminophores and a waveguide, transparent in the frequency range of the excitation photons, for guiding the excitation photons from the source to the composite sensing film; a detector for measuring properties of photons emitted from the luminophores. A system including a computer may be useful for coordinating the activities of the sensor.
    Type: Grant
    Filed: November 4, 2011
    Date of Patent: December 31, 2019
    Assignee: OptiO2, LLC
    Inventors: Ruby N. Ghosh, Reza Loloee, Per A. Askeland, Christopher T. Weeks
  • Optical Sensor and Sensing System for Oxygen Monitoring in Fluids Using Molybdenum Cluster Phosphorescence
    Publication number: 20140017127
    Abstract: A composite comprises a polymer matrix and a luminophore dispersed therein. The composite is useful as a sensing film that is used as an optical sensor for oxygen measurement comprising the composite sensing film; a source of photons for photo-exciting the luminophores and a waveguide, transparent in the frequency range of the excitation photons, for guiding the excitation photons from the source to the composite sensing film; a detector for measuring properties of photons emitted from the luminophores. A system including a computer may be useful for coordinating the activities of the sensor.
    Type: Application
    Filed: November 4, 2011
    Publication date: January 16, 2014
    Inventors: Ruby N. Ghosh, Reza Loloee, Per A. Askeland, Christopher T. Weeks
  • Sensors and method for measurement of flow rates and cumulative flow in ducts
    Patent number: 6408698
    Abstract: The present invention relates to a sensor for measuring the instantaneous rate of mass flow and the cumulative mass flow in steady or unsteady flows of single-phase liquids or gases in a duct. By measuring the shear stress or the streamwise pressure gradient at the duct wall, and relating it to mass flow through solutions to the Navier Stokes equations of fluid mechanics, information on mass flow through the entire duct cross sectional area is deduced.
    Type: Grant
    Filed: August 31, 1999
    Date of Patent: June 25, 2002
    Assignee: Board of Trustees Operating - Michigan State University
    Inventors: Giles J. Brereton, Harold J. Schock, Ruby N. Ghosh, Fathi M. Salam