Patents by Inventor Ravindra Vasant KOLHATKAR

Ravindra Vasant KOLHATKAR 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).

  • Shear horizontal-surface acoustic wave system and method for measurement and speciaion speciation of hydrocarbons in groundwater
    Patent number: 10801995
    Abstract: An exemplary embodiment of a method of detecting hydrocarbons in Systems and methods for sensing analytes in an aqueous solution, include pretreating a water sample to provide a test sample. A flow cell includes at least one sensor with a polymer coating having at least partial selectivity for at least one analyte. The flow cell receives a test sample and a reference sample. At least one output signal from the at least one sensor is processed with a microcontroller using a model of the sensor response and a bank of Kalman filters to estimate a concentration of at least one analyte in the aqueous solution.
    Type: Grant
    Filed: June 13, 2016
    Date of Patent: October 13, 2020
    Assignees: Marquette University, Chevron U.S.A. Inc.
    Inventors: Fabien J. Josse, Florian Bender, Antonio J. Ricco, Rachel Ellen Mohler, Ravindra Vasant Kolhatkar
  • SHEAR HORIZONTAL-SURFACE ACOUSTIC WAVE SYSTEM AND METHOD FOR MEASUREMENT AND SPECIATION OF HYDROCARBONS IN GROUNDWATER
    Publication number: 20180128781
    Abstract: An exemplary embodiment of a method of detecting hydrocarbons in Systems and methods for sensing analytes in an aqueous solution, include pretreating a water sample to provide a test sample. A flow cell includes at least one sensor with a polymer coating having at least partial selectivity for at least one analyte. The flow cell receives a test sample and a reference sample. At least one output signal from the at least one sensor is processed with a microcontroller using a model of the sensor response and a bank of Kalman filters to estimate a concentration of at least one analyte in the aqueous solution.
    Type: Application
    Filed: June 13, 2016
    Publication date: May 10, 2018
    Inventors: Fabien J. JOSSE, Florian BENDER, Antonio J. RICCO, Rachel Ellen MOHLER, Ravindra Vasant KOLHATKAR
  • In situ bioremediation of contaminated groundwater using electron acceptor salts
    Patent number: 8986545
    Abstract: A process is provided for bioremediating petroleum hydrocarbon contaminated groundwater by applying at least one electron acceptor salt to a ground surface overlying the contaminated groundwater. The process includes identifying characteristics of the aquifer, in which the contaminated groundwater is found, to enable treatment of aquifers at a range of depths below the ground surface.
    Type: Grant
    Filed: April 19, 2012
    Date of Patent: March 24, 2015
    Assignee: Chevron U.S.A. Inc.
    Inventor: Ravindra Vasant Kolhatkar
  • IN SITU BIOREMEDIATION OF CONTAMINATED GROUNDWATER USING ELECTRON ACCEPTOR SALTS
    Publication number: 20130015126
    Abstract: A process is provided for bioremediating petroleum hydrocarbon contaminated groundwater by applying at least one electron acceptor salt to a ground surface overlying the contaminated groundwater. The process includes identifying characteristics of the aquifer, in which the contaminated groundwater is found, to enable treatment of aquifers at a range of depths below the ground surface.
    Type: Application
    Filed: April 19, 2012
    Publication date: January 17, 2013
    Applicant: Chevron U.S.A. Inc.
    Inventor: Ravindra Vasant KOLHATKAR