Patents by Inventor Megharaj Mallavarapu

Megharaj Mallavarapu 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).

  • Patent number: 10119927
    Abstract: A method of assessing concentration of analyte ion(s) in a liquid can include contacting the liquid with a plurality of electrodes, each of which is configured to generate a signal in response to sensing a selected ion in the liquid. The signal received from each of the electrodes can be processed using a neural network algorithm trained to calculate ion interference between the selected ion and other ions in the liquid sensed at one of the electrodes and/or electrode interference between ones of the electrodes sensing a same selected ion based on a result of a comparison of training data. The ion interference and/or electrode interference can be compensated for, and the concentration of the analyte ion(s) in the liquid can be assessed on the basis of a compensated output from the neural network algorithm.
    Type: Grant
    Filed: December 22, 2011
    Date of Patent: November 6, 2018
    Assignee: CRC CARE PTY LTD
    Inventors: Ravendra Naidu, Liang Wang, Zuliang Chen, Megharaj Mallavarapu
  • Patent number: 9199184
    Abstract: The present invention relates to modified clay sorbents which may be used as sorbents for chemical compounds. In addition, the present invention also relates to the use of modified clay sorbents for the sorption of chemical compounds. The modified clay sorbents of the present invention have particular application for the sorption of anionic and/or hydrophobic compounds.
    Type: Grant
    Filed: June 9, 2011
    Date of Patent: December 1, 2015
    Assignee: CRC CARE Pty Ltd
    Inventors: Megharaj Mallavarapu, Ravendra Naidu, Yunfei Xi, Binoy Sarkar
  • Patent number: 9103797
    Abstract: Disclosed herein are methods for the detection and/or quantification of anionic surfactants. Also disclosed herein are test kits, which utilize the disclosed methods, to estimate the anionic surfactant concentration in samples, such as environmentally-derived samples. In some specific embodiments, the method and the test kit may be used to detect, among other things, aqueous film forming foams that comprise anionic surfactants.
    Type: Grant
    Filed: September 19, 2012
    Date of Patent: August 11, 2015
    Assignee: CRC CARE Pty Ltd
    Inventors: Megharaj Mallavarapu, Ravendra Naidu, Philip Mercurio
  • Publication number: 20130304395
    Abstract: The present invention relates to a method of assessing concentration of at least one analyte ion in a liquid, the method including contacting the liquid with a plurality of electrodes, each of which is configured to generate a signal in response to sensing a selected ion in the liquid; receiving the signal from each of the electrodes; processing the signal from each of the electrodes using a neural network algorithm residing on a processor that has been trained to calculate ion interference between the selected ion and other ions in the liquid sensed at one of the electrodes and/or electrode interference between ones of the electrodes sensing a same selected ion based on a result of a comparison of training data indicative of a known ionic concentration applied to the neural network algorithm and the known ionic concentration; compensating for said ion interference and/or said electrode interference; and assessing the concentration of the at least analyte ion in the liquid on the basis of a compensated output
    Type: Application
    Filed: December 22, 2011
    Publication date: November 14, 2013
    Inventors: Ravendra Naidu, Liang Wang, Zuliang Chen, Megharaj Mallavarapu
  • Publication number: 20130017619
    Abstract: Disclosed herein are methods for the detection and/or quantification of anionic surfactants. Also disclosed herein are test kits, which utilize the disclosed methods, to estimate the anionic surfactant concentration in samples, such as environmentally-derived samples. In some specific embodiments, the method and the test kit may be used to detect, among other things, aqueous film forming foams that comprise anionic surfactants.
    Type: Application
    Filed: September 19, 2012
    Publication date: January 17, 2013
    Inventors: Megharaj Mallavarapu, Ravendra Naidu, Philip Mercurio
  • Publication number: 20120145639
    Abstract: The present invention relates to modified clay sorbents which may be used as sorbents for chemical compounds. In addition, the present invention also relates to the use of modified clay sorbents for the sorption of chemical compounds. The modified clay sorbents of the present invention have particular application for the sorption of anionic and/or hydrophobic compounds.
    Type: Application
    Filed: June 9, 2011
    Publication date: June 14, 2012
    Inventors: Megharaj Mallavarapu, Ravendra Naidu, Yunfei Xi, Binoy Sarkar
  • Publication number: 20110097815
    Abstract: Disclosed herein are methods for the detection and/or quantification of anionic surfactants. Also disclosed herein are test kits, which utilize the disclosed methods, to estimate the anionic surfactant concentration in samples, such as environmentally-derived samples. In some specific embodiments, the method and the test kit may be used to detect, among other things, aqueous film forming foams that comprise anionic surfactants.
    Type: Application
    Filed: April 8, 2010
    Publication date: April 28, 2011
    Inventors: Megharaj Mallavarapu, Ravendra Naidu, Philip Mercurio
  • Patent number: 7479226
    Abstract: A system and method for removal of uranium and other contaminants from aqueous solution, utilizing live algae, are described. The system includes a bioreactor, in which a reaction mixture of live algae, preferably photosynthetic algae, and contaminated solution are introduced; a means for introducing carbon dioxide gas in the reaction mixture; a means for exposing the reaction mixture to light; means for mixing and impelling the reaction mixture; and means for separating out algae from remediated solution.
    Type: Grant
    Filed: February 5, 2007
    Date of Patent: January 20, 2009
    Inventors: Eric H. Dunlop, Ravendra Naidu, Megharaj Mallavarapu
  • Publication number: 20070289910
    Abstract: A system and method for removal of uranium and other contaminants from aqueous solution, utilizing live algae, are described. The system includes a bioreactor, in which a reaction mixture of live algae, preferably photosynthetic algae, and contaminated solution are introduced; a means for introducing carbon dioxide gas in the reaction mixture; a means for exposing the reaction mixture to light; means for mixing and impelling the reaction mixture; and means for separating out algae from remediated solution.
    Type: Application
    Filed: February 5, 2007
    Publication date: December 20, 2007
    Inventors: Eric Dunlop, Ravendra Naidu, Megharaj Mallavarapu
  • Patent number: 7172691
    Abstract: A system and method for removal of uranium and other contaminants from aqueous solution, utilizing live algae, are described. The system includes a bioreactor, in which a reaction mixture of live algae, preferably photosynthetic algae, and contaminated solution are introduced; a means for introducing carbon dioxide gas in the reaction mixture; a means for exposing the reaction mixture to light; means for mixing and impelling the reaction mixture; and means for separating out algae from remediated solution.
    Type: Grant
    Filed: April 22, 2005
    Date of Patent: February 6, 2007
    Inventors: Eric H. Dunlop, Ravendra Naidu, Megharaj Mallavarapu
  • Publication number: 20050269259
    Abstract: A system and method for removal of uranium and other contaminants from aqueous solution, utilizing live algae, are described. The system includes a bioreactor, in which a reaction mixture of live algae, preferably photosynthetic algae, and contaminated solution are introduced; a means for introducing carbon dioxide gas in the reaction mixture; a means for exposing the reaction mixture to light; means for mixing and impelling the reaction mixture; and means for separating out algae from remediated solution.
    Type: Application
    Filed: April 22, 2005
    Publication date: December 8, 2005
    Inventors: Eric Dunlop, Ravendra Naidu, Megharaj Mallavarapu