Patents by Inventor Arun Prakash

Arun Prakash 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).

  • Publication number: 20130113646
    Abstract: A method of surveying the condition of an underground enclosure including the steps of: (a) positioning at least one transmitter/receiver unit (including an antenna) within an underground, substantially nonconductive enclosure, such that a substantial air gap exists between the antenna and the inner wall of the enclosure; (b) transmitting an ultra wideband (UWB) signal toward at least a portion of the inner wall; and (c) processing the return signal in order to identify the interface between the soil and a region of conductivity different from the soil.
    Type: Application
    Filed: December 3, 2012
    Publication date: May 9, 2013
    Applicant: Louisiana Tech Research Foundation, a Division of Louisiana Tech University Foundation, Inc.
    Inventors: Erez Allouche, Arun Prakash Jaganathan, Neven Simicevic
  • Publication number: 20130082866
    Abstract: A method of surveying the condition of an underground conduit by positioning a propelled carriage assembly within the underground conduit. The carriage assembly includes (i) at least one transmitter/receiver unit capable of transmitting a pulsed signal toward at least a portion of an inner wall of the conduit, and (ii) a secondary sensor positioned on the carriage assembly. The data derived from the pulsed signal at a given lateral location within an underground conduit is read as is a secondary sensor condition derived from secondary sensor data taken at the given lateral location. Then it is determined whether the secondary sensor condition indicates a basis for a false void detection by the data derived from the pulsed signal and if the basis for false void detection exists, providing an indication of such basis.
    Type: Application
    Filed: September 27, 2012
    Publication date: April 4, 2013
    Inventors: Arun Prakash Jaganathan, Erez N. Allouche
  • Patent number: 8407014
    Abstract: The present invention is directed to a method for automatic selection of colorants and flakes to produce one or more matching formulas to match color and appearance of a target coating containing flakes. The present invention is further directed to a system for automatic selection of colorants and flakes for producing one or more matching formulas to match color and appearance of a target coating.
    Type: Grant
    Filed: February 21, 2008
    Date of Patent: March 26, 2013
    Assignee: E I du Pont de Nemours and Company
    Inventors: Arun Prakash, Judith Elaine Obetz
  • Publication number: 20130014270
    Abstract: Disclosed in this specification is a method and program storage device for comparing two sets of private data without revealing those private data. If the comparison deems the two data sets sufficiently similar, helper data may be provided to permit reconstruction of one of the private data sets without transmission of that private data set.
    Type: Application
    Filed: July 9, 2012
    Publication date: January 10, 2013
    Inventors: Bon K. Sy, Arun Prakash Kumara Krishnan
  • Patent number: 8350570
    Abstract: A method of surveying the condition of an underground enclosure including the steps of (a) positioning at least one transmitter/receiver unit (including an antenna) within an underground, substantially nonconductive enclosure, such that a substantial air gap exists between the antenna and the inner wall of the enclosure; (b) transmitting an ultra wideband (UWB) signal toward at least a portion of the inner wall; and (c) processing the return signal in order to identify the interface between the soil and a region of conductivity different from the soil.
    Type: Grant
    Filed: August 29, 2008
    Date of Patent: January 8, 2013
    Assignee: Louisiana Tech Research Foundation; a division of Lousiana Tech University Foundation, Inc.
    Inventors: Erez Allouche, Arun Prakash Jaganathan, Neven Simicevic
  • Publication number: 20120280852
    Abstract: A conduit survey apparatus having a carriage capable of movement axially down a conduit. The carrier includes a radio frequency (RF) signal generator and an RF signal detector positioned on the carriage along with a controller controlling the signal generator and signal detector. The carrier further includes a waveguide with an open throat transmitting signals from the signal generator and directing received signals to the signal detector. Finally, the carrier includes a waveguide positioner mounted on the carrier and adapted to selectively engage an interior wall of the conduit, wherein the waveguide guide is connected to the positioner such that the open throat of the waveguide is within about 1 inch of the interior wall when the positioner engages the interior wall.
    Type: Application
    Filed: March 29, 2012
    Publication date: November 8, 2012
    Inventors: Erez Allouche, Arun Prakash Jaganathan
  • Patent number: 8270699
    Abstract: The present invention is directed to a method for obtaining appearance characteristics of a target coating containing effect pigments. The present invention is also directed to a method for comparing appearances of two or more coatings by comparing the appearance characteristics. The present invention is further directed to a system for obtaining appearance characteristics of one or more coatings and comparing said coating appearances.
    Type: Grant
    Filed: October 2, 2007
    Date of Patent: September 18, 2012
    Assignee: E I du Pont de Nemours and Company
    Inventors: Allan Blase Joseph Rodrigues, Arun Prakash, Judith Elaine Obetz
  • Publication number: 20120144016
    Abstract: Embodiments presented herein provide methods, systems and computer program products for determining a count of network users. One method identifies one or more login access requests, from one or more server logs. Each of the one or more login access requests comprises a login cookie, and a user identifier. The method then forms one or more connected components based on the one or more login access requests. Each connected component comprises one or more user identifiers, wherein each of the one or more user identifiers is associated with one or more login cookies. The method finally determines a count of login users based, at least in part, on the user identifiers in the one or more connected components.
    Type: Application
    Filed: December 2, 2010
    Publication date: June 7, 2012
    Applicant: YAHOO! INC
    Inventors: Liang ZHANG, Anirban DASGUPTA, Belle L. TSENG, Benjamin GRAHAM, Arun A. PRAKASH
  • Patent number: 8131496
    Abstract: The present invention is directed to an apparatus and a method that characterizes the hiding of coating compositions, such as automotive OEM and refinishes paints. The method is directed to sequentially storing in a computing device hiding data obtained by measuring the color difference (?RGB) in reflections of light and dark portions of target areas of a monotonic coating resulting from a coating composition applied over hiding test panel and by measuring coating thicknesses of the monotonic coating that correspond to the target areas, classifying the type of the hiding data, selecting fitting equations applicable to the classified hiding data, fitting the selected equation to match the classified hiding data and locating a hiding thickness on the monotonic coating that corresponds to the threshold value of the color difference at that location to determine the hiding thickness of the coating composition.
    Type: Grant
    Filed: February 9, 2011
    Date of Patent: March 6, 2012
    Assignee: E.I. du Pont de Nemours and Company
    Inventors: Arun Prakash, John Paul Gallagher, Roger Albert Karmes, Allan Blase Joseph Rodrigues
  • Patent number: 8065314
    Abstract: The present invention is directed to a method for identifying one or more matching formulas for matching color and appearance of a target coating containing effect pigments. The present invention is also directed to a system for identifying one or more matching formulas for matching color and appearance of a target coating containing effect pigments.
    Type: Grant
    Filed: October 1, 2007
    Date of Patent: November 22, 2011
    Assignee: E. I. du Pont de Nemours and Company
    Inventors: Arun Prakash, Allan Blase Joseph Rodrigues, Judith Elaine Obetz, Wilhelm Kettler, John Paul Gallagher
  • Publication number: 20110246087
    Abstract: The present invention is directed to a method for automatic selection of colorants and flakes to produce one or more matching formulas to match color and appearance of a target coating containing flakes. The present invention is further directed to a system for automatic selection of colorants and flakes for producing one or more matching formulas to match color and appearance of a target coating.
    Type: Application
    Filed: February 21, 2008
    Publication date: October 6, 2011
    Inventors: Arun Prakash, Judith Elaine Obetz
  • Publication number: 20110131009
    Abstract: The present invention is directed to an apparatus and a method that characterizes the hiding of coating compositions, such as automotive OEM and refinishes paints. The method is directed to sequentially storing in a computing device hiding data obtained by measuring the color difference (?RGB) in reflections of light and dark portions of target areas of a monotonic coating resulting from a coating composition applied over hiding test panel and by measuring coating thicknesses of the monotonic coating that correspond to the target areas, classifying the type of the hiding data, selecting fitting equations applicable to the classified hiding data, fitting the selected equation to match the classified hiding data and locating a hiding thickness on the monotonic coating that corresponds to the threshold value of the color difference at that location to determine the hiding thickness of the coating composition.
    Type: Application
    Filed: February 9, 2011
    Publication date: June 2, 2011
    Applicant: E. I. DU PONT DE NEMOURS AND COMPANY
    Inventors: Arun PRAKASH, John Paul GALLAGHER, Roger Albert KARMES, Allan Blase Joseph RODRIGUES
  • Patent number: 7925468
    Abstract: The present invention is directed to an apparatus and a method that characterizes the hiding of coating compositions, such as automotive OEM and refinishes paints. The method is directed to sequentially storing in a computing device hiding data obtained by measuring the color difference (?RGB) in reflections of light and dark portions of target areas of a monotonic coating resulting from a coating composition applied over hiding test panel and by measuring coating thicknesses of the monotonic coating that correspond to the target areas, classifying the type of the hiding data, selecting fitting equations applicable to the classified hiding data, fitting the selected equation to match the classified hiding data and locating a hiding thickness on the monotonic coating that corresponds to the threshold value of the color difference at that location to determine the hiding thickness of the coating composition.
    Type: Grant
    Filed: December 5, 2007
    Date of Patent: April 12, 2011
    Assignee: E.I. du Pont de Nemours & Company
    Inventors: Arun Prakash, John Paul Gallagher, Roger Albert Karmes, Allan Blase Joseph Rodrigues
  • Publication number: 20100305902
    Abstract: The present invention is directed to an apparatus and a method that characterizes the hiding of coating compositions, such as automotive OEM and refinishes paints. The method is directed to sequentially storing in a computing device hiding data obtained by measuring the color difference (?RGB) in reflections of light and dark portions of target areas of a monotonic coating resulting from a coating composition applied over hiding test panel and by measuring coating thicknesses of the monotonic coating that correspond to the target areas, classifying the type of the hiding data, selecting fitting equations applicable to the classified hiding data, fitting the selected equation to match the classified hiding data and locating a hiding thickness on the monotonic coating that corresponds to the threshold value of the color difference at that location to determine the hiding thickness of the coating composition.
    Type: Application
    Filed: December 5, 2007
    Publication date: December 2, 2010
    Inventors: Arun Prakash, John Paul Gallagher, Roger Albert Karmes, Allan Blase Joseph Rodrigues
  • Publication number: 20100237871
    Abstract: A method of surveying the condition of an underground enclosure including the steps of (a) positioning at least one transmitter/receiver unit (including an antenna) within an underground, substantially nonconductive enclosure, such that a substantial air gap exists between the antenna and the inner wall of the enclosure; (b) transmitting an ultra wideband (UWB) signal toward at least a portion of the inner wall; and (c) processing the return signal in order to identify the interface between the soil and a region of conductivity different from the soil.
    Type: Application
    Filed: August 29, 2008
    Publication date: September 23, 2010
    Inventors: Erez Allouche, Arun Prakash Jaganathan, Neven Simicevic
  • Patent number: 7759494
    Abstract: This invention relates to a process for preparation of taxanes comprising subjecting 7,10-diprotected intermediates 7-O-(2-haloacyl)baccatin III 6c or 7,10-O-di-(2-haloacyl)-10-deacetylbaccatin III 6b to a step of coupling with (4S,5R)-3-[(2-alkyl/aryl-2-trialkylsilyl)ethoxy-carbonyl]-4-aryl-2-substituted-1,3-oxazolidine-5-carboxylic acid 1 in the presence of a condensation agent, an activating agent and an aromatic hydrocarbon to obtain 7-O-[2-(haloacyl)]-13-[(4S,5R)-4-aryl-2-substituted-3(2-unsubstituted/substituted-2-trialkylsilyl)-ethoxycarbonyl-1,3-oxazolidinyl-5-carbonyl]baccatin III 7a or 7,10-di-O [2-(haloacyl)]-13-[(4S,5R)-4-aryl-2-substituted-3-(2-unsubstituted/substituted-2-trialkylsilyl)ethoxy-carbonyl-1,3-oxazolidinyl-5-carbonyl]-10-deacetylbaccatin III 7b; treating the coupled products 7-O-[2-(haloacyl)]-13-[(4S,5R)-4-aryl-2-substituted-3-(2-substituted-2-trialkylsilyl)ethoxy-carbonyl-1,3-oxazolidinyl-5-carbonyl]baccatin III 7a or 7,10-di-O-[2[(haloacyl)]-13-[(4S,5R)-4-aryl-2-substituted-3-(2-s
    Type: Grant
    Filed: June 15, 2007
    Date of Patent: July 20, 2010
    Assignee: Dabur India Limited
    Inventors: Arun Prakash Sharma, Subrata Sarkar, Jyan Shankar Mahanty
  • Publication number: 20100027870
    Abstract: The present invention is directed to a method for obtaining appearance characteristics of a target coating containing effect pigments. The present invention is also directed to a method for comparing appearances of two or more coatings by comparing the appearance characteristics. The present invention is further directed to a system for obtaining appearance characteristics of one or more coatings and comparing said coating appearances.
    Type: Application
    Filed: October 2, 2007
    Publication date: February 4, 2010
    Inventors: Allan Blase Joseph Rodrigues, Arun Prakash, Judith Elaine Obetz
  • Patent number: 7529688
    Abstract: In one embodiment of the present invention, a cost savings analysis system includes one or more software components. The software components collectively receive from a user one or more first inputs specifying a cost savings goal and one or more second inputs specifying a technique for generating a baseline price. The software components collectively access historical transaction data within one or more databases needed to generate a baseline price according to the specified technique, generate the baseline price, determine a variation between the generated baseline price and an actual price for each of one or more transactions corresponding to the specified cost savings goal, and compare the determined variations for the one or more transactions with the specified cost savings goal to conduct a baseline cost savings analysis.
    Type: Grant
    Filed: September 21, 2001
    Date of Patent: May 5, 2009
    Assignee: i2 Technologies US, Inc.
    Inventor: Balasubramanian Arun Prakash
  • Publication number: 20090019086
    Abstract: The present invention is directed to a method for identifying one or more matching formulas for matching color and appearance of a target coating containing effect pigments. The present invention is also directed to a system for identifying one or more matching formulas for matching color and appearance of a target coating containing effect pigments.
    Type: Application
    Filed: October 1, 2007
    Publication date: January 15, 2009
    Inventors: Arun Prakash, Allan Blase Joseph Rodrigues, Judith Elaine Obetz, Wilhelm Kettler, John Paul Gallagher
  • Patent number: 7410130
    Abstract: A method of determining the attitude of a spinning spacecraft is provided. The method includes stabilizing the spacecraft, initializing the attitude of the spacecraft using star tracker data, and estimating the attitude of the spacecraft.
    Type: Grant
    Filed: August 3, 2004
    Date of Patent: August 12, 2008
    Assignee: The Boeing Company
    Inventors: H. Grant Wang, David D. Needelman, Arun Prakash