Patents by Inventor Prasanth Kumar

Prasanth Kumar 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: 20160312151
    Abstract: Metathesized triacylglycerol polyols, fractionated polyol variants thereof, and their related physical and thermal properties are disclosed.
    Type: Application
    Filed: January 25, 2016
    Publication date: October 27, 2016
    Applicant: Trent University
    Inventors: Suresh Narine, Prasanth Kumar Sasidharan Pillai, Shaojun Li, Laziz Bouzidi, Ali Mahdevari
  • Publication number: 20150337073
    Abstract: Metathesized triacylglycerol polyols and their related physical and thermal properties are disclosed. Such metathesized triacylglycerol polyols are also used as a component of polyurethane applications, including polyurethane foams.
    Type: Application
    Filed: March 26, 2015
    Publication date: November 26, 2015
    Applicant: TRENT UNIVERSITY
    Inventors: Suresh Narine, Prasanth Kumar Sasidharan Pillai, Shaojun Li, Laziz Bouzidi, Ali Mahdevari
  • Publication number: 20150307811
    Abstract: Metathesized triacylglycerol green polyols and their related physical and thermal properties are disclosed. Such metathesized triacylglycerol green polyols are also used as a component of polyurethane applications, including polyurethane foams.
    Type: Application
    Filed: March 26, 2015
    Publication date: October 29, 2015
    Applicant: Trent University
    Inventors: Suresh Narine, Prasanth Kumar Sasidharan Pillai, Shaojun Li, Laziz Bouzidi, Ali Mahdevari
  • Publication number: 20150299099
    Abstract: Metathesized triacylglycerol polyols derived from certain natural oils, including canola oil, and their related physical properties are disclosed. Such metathesized triacylglycerol polyols are also used as a component of polyurethane applications, including polyurethane foams.
    Type: Application
    Filed: March 26, 2015
    Publication date: October 22, 2015
    Applicant: TRENT UNIVERSITY
    Inventors: Suresh Narine, Prasanth Kumar Sasidharan Pillai, Shaojun Li, Laziz Bouzidi, Ali Mahdevari
  • Patent number: 8906724
    Abstract: A process for synthesizing a color stable Mn4+ doped phosphor includes contacting a precursor of formula I, in gaseous form at an elevated temperature with a fluorine-containing oxidizing agent to form the color stable Mn4+ doped phosphor Ax[MFy]:Mn4+??I wherein A is Li, Na, K, Rb, Cs, or a combination thereof; M is Si, Ge, Sn, Ti, Zr, Al, Ga, In, Sc, Hf, Y, La, Nb, Ta, Bi, Gd, or a combination thereof; x is the absolute value of the charge of the [MFy] ion; and y is 5, 6 or 7.
    Type: Grant
    Filed: June 23, 2014
    Date of Patent: December 9, 2014
    Assignee: General Electric Company
    Inventors: James Edward Murphy, Anant Achyut Setlur, Florencio Garcia, Robert Joseph Lyons, Ashfaqul Islam Chowdhury, Nagaveni Karkada, Prasanth Kumar Nammalwar
  • Patent number: 8903889
    Abstract: An event management system that plays a central role in handling varying loads of metadata events from each of a large number of touch-points or data servers that come into a Data Centric computing environment. As a matter of distinction when compared to conventional method-centric computing environments, there is broadly contemplated herein the concept not of physically installing a software agent on a designated system as stationary entity, but of launching it in a distributed computing environment and permitting it to “roam” around the numerous data servers to ensure consistency, accuracy and currency between the data entities managed by multiple data servers and the metadata servers in a data-centric computing environment.
    Type: Grant
    Filed: July 25, 2008
    Date of Patent: December 2, 2014
    Assignee: International Business Machines Corporation
    Inventors: Karthik Vijaykumar, Ock Kee Baek, Pradeep Madaiah, Seema Prasanth Kumar
  • Publication number: 20140327026
    Abstract: A process for synthesizing a color stable Mn4+ doped phosphor includes contacting a precursor of formula I, in gaseous form at an elevated temperature with a fluorine-containing oxidizing agent to form the color stable Mn4+ doped phosphor Ax[MFy]:Mn4+ wherein A is Li, Na, K, Rb, Cs, or a combination thereof; M is Si, Ge, Sn, Ti, Zr, Al, Ga, In, Sc, Hf, Y, La, Nb, Ta, Bi, Gd, or a combination thereof; x is the absolute value of the charge of the [MFy] ion; and y is 5, 6 or 7.
    Type: Application
    Filed: June 23, 2014
    Publication date: November 6, 2014
    Inventors: James Edward Murphy, Anant Achyut Setlur, Florencio Garcia, Robert Joseph Lyons, Ashfaqul Islam Chowdhury, Nagaveni Karkada, Prasanth Kumar Nammalwar
  • Patent number: 8865305
    Abstract: A method of making a core-shell phosphor is provided. The method comprises mixing a lanthanum phosphate (LaPO4) core with a shell precursor mixture comprising at least one compound of La, at least one compound of Ce, and at least one compound of Tb to form a core+shell precursor mixture, heating the core+shell precursor mixture to a temperature in a range from about 900° C. to about 1200° C. with an inorganic flux material in presence of a reductant to provide a heated core+shell precursor mixture, cooling the heated core+shell precursor mixture to ambient temperature to provide a product core-shell phosphor dispersed in the inorganic flux material; and separating the product core-shell phosphor from the inorganic flux material.
    Type: Grant
    Filed: June 16, 2010
    Date of Patent: October 21, 2014
    Assignee: General Electric Company
    Inventors: Digamber Gurudas Porob, Alok Mani Srivastava, Holly Ann Comanzo, Gopi Chandran Ramachandran, Prasanth Kumar Nammalwar
  • Publication number: 20140264418
    Abstract: A process for synthesizing a color stable Mn4+ doped phosphor includes contacting a precursor of formula I, in gaseous form at an elevated temperature with a fluorine-containing oxidizing agent to form the color stable Mn4+ doped phosphor Ax[MFy]:Mn4+??I wherein A is Li, Na, K, Rb, Cs, NR4 or a combination thereof; M is Si, Ge, Sn, Ti, Zr, Al, Ga, In, Sc, Hf, Y, La, Nb, Ta, Bi, Gd, or a combination thereof; R is H, lower alkyl, or a combination thereof; x is the absolute value of the charge of the [MFy] ion; and y is 5, 6 or 7.
    Type: Application
    Filed: March 13, 2014
    Publication date: September 18, 2014
    Applicant: GENERAL ELECTRIC COMPANY
    Inventors: James Edward Murphy, Anant Achyut Setlur, Florencio Garcia, Robert Joseph Lyons, Ashfaqul Islam Chowdhury, Nagaveni Karkada, Prasanth Kumar Nammalwar
  • Publication number: 20140268655
    Abstract: A color stable Mn4+ doped phosphor of formula I, Ax[MFy]:Mn4+??I wherein A is Li, Na, K, Rb, Cs, or a combination thereof; M is Si, Ge, Sn, Ti, Zr, Al, Ga, In, Sc, Hf, Y, La, Nb, Ta, Bi, Gd, or a combination thereof; x is the absolute value of the charge of the [MFy] ion; y is 5, 6 or 7; and wherein % intensity loss of the phosphor after exposure to light flux of at least 80 w/cm2 at a temperature of at least 50° C. for at least 21 hours is ?4%.
    Type: Application
    Filed: May 23, 2014
    Publication date: September 18, 2014
    Applicant: GENERAL ELECTRIC COMPANY
    Inventors: James Edward Murphy, Anant Achyut Setlur, Florencio Garcia, Robert Joseph Lyons, Ashfaqul Islam Chowdhury, Nagaveni Karkada, Prasanth Kumar Nammalwar
  • Publication number: 20140231857
    Abstract: A phosphor material is presented that includes a blend of a first phosphor, a second phosphor and a third phosphor. The first phosphor includes a composition having a general formula of RE2?yM1+yA2?yScySin-wGewO12+?:Ce3+ wherein RE is selected from a lanthanide ion or Y3+, where M is selected from Mg, Ca, Sr or Ba, A is selected from Mg or Zn and where 0?y?2, 2.5?n?3.5, 0?w?1, and ?1.5???1.5. The second phosphor includes a complex fluoride doped with manganese (Mn4+), and the third phosphor include a phosphor composition having an emission peak in a range from about 520 nanometers to about 680 nanometers. A lighting apparatus including such a phosphor material is also presented. The light apparatus includes a light source in addition to the phosphor material.
    Type: Application
    Filed: September 20, 2012
    Publication date: August 21, 2014
    Applicant: GENERAL ELECTRIC COMPANY
    Inventors: Prasanth Kumar Nammalwar, Digamber Gurudas Porob, Anant Achyut Setlur, Satya Kishore Manepalli
  • Publication number: 20140178569
    Abstract: A method for making coated zinc silicate phosphor, the method includes the steps of combining a zinc silicate with a rare earth compound under aqueous conditions and removing the water from a product of the combination to form a powder. The powder is fired to form a coated zinc silicate phosphor.
    Type: Application
    Filed: December 20, 2013
    Publication date: June 26, 2014
    Inventors: PRASANTH KUMAR NAMMALWAR, ALOK MANI SRIVASTAVA, SWARNAGOWRI ADDEPALLI, DIGAMBER GURUDAS POROB, WILLIAM ERWIN COHEN, William Winder BEERS
  • Patent number: 8762883
    Abstract: Systems and methods are provided that manipulating popup window controls. A popup window includes a presentation applet running in the popup window that collects data regarding the presentation. In order to save data collected by the applet before the popup window is closed, a control container embedded in the popup window disables the close window button of the popup window. The control container also maximizes the popup window to full screen for a more functional user interface.
    Type: Grant
    Filed: January 30, 2009
    Date of Patent: June 24, 2014
    Assignee: Oracle International Corporation
    Inventors: Darshan Kumar, Ambili Sudhi, Govindraja Achar, Pankesh Jhaveri, Prasanth Kumar
  • Patent number: 8703016
    Abstract: A phosphor material is presented that includes a blend of a first phosphor, a second phosphor and a third phosphor. The first phosphor includes a composition having a general formula of ((Sr1?zMz)1?(x+w)AwCex)3(Al1?ySiy)O4+y+3(x?w)F1?y?3(x?w), wherein 0<x?0.10, 0?y?0.5, 0?z?0.5, 0?w?x, A comprises Li, Na, K, or Rb; and M comprises Ca, Ba, Mg, Zn, or Sn. The second phosphor includes a complex fluoride doped with manganese (Mn4+), and the third phosphor include a phosphor composition having an emission peak in a range from about 520 nanometers to about 680 nanometers. A lighting apparatus including such a phosphor material is also presented. The light apparatus includes a light source in addition to the phosphor material.
    Type: Grant
    Filed: June 28, 2011
    Date of Patent: April 22, 2014
    Assignee: General Electric Company
    Inventors: Prasanth Kumar Nammalwar, Anant Achyut Setlur, Digamber Gurudas Porob, Satya Kishore Manepalli
  • Patent number: 8329952
    Abstract: The present invention relates to process for the preparation of novel crystalline Desmethylvenlafaxine succinate polymorphic Forms-A, B. The present invention also relates to novel processes for the preparation of 0-Desmethylvenlafaxine succinate polymorphic Forms-(I), (II), (III) and amorphous.
    Type: Grant
    Filed: July 15, 2008
    Date of Patent: December 11, 2012
    Assignee: Matrix Laboratories Limited
    Inventors: Ramakoteswara Rao Jetti, Purandhar Koilkonda, Jagan Mohana Chary Tummanapally, Mohana Vamsi Krishna Vadlamudi, Prasanth Kumar Barik, Om Dutt Tyagi
  • Patent number: 8282703
    Abstract: A method for recovering at least one rare earth element from a phosphor is presented. The method includes a halogenation step (a) and a reduction step (b). The phosphor is first halogenated in a molten salt to convert at least one rare earth constituent contained therein to a soluble rare earth halide. Then, the rare earth halide in the molten salt can be reduced, to convert the rare earth halide to a rare earth element in its elemental state. A method for individually recovering multiple rare earth elements from a phosphor is also presented.
    Type: Grant
    Filed: December 20, 2010
    Date of Patent: October 9, 2012
    Assignee: General Electric Company
    Inventors: Karthick Vilapakkam Gourishankar, Alok Mani Srivastava, Prasanth Kumar Nammalwar, Satya Kishore Manepalli
  • Publication number: 20120197677
    Abstract: A method and system to effectively apply the real time resource information into process models at design time. When process models are being prepared, an optimal list of candidate roles for each task within the process is presented. This list is generated dynamically based on the characteristics of the underlying resources within the roles. Further, the same information, along with historical data related to past performance at a resource level, can be leveraged during process simulations for optimal resource allocations.
    Type: Application
    Filed: January 28, 2011
    Publication date: August 2, 2012
    Applicant: INTERNATIONAL BUSINESS MACHINES CORPORATION
    Inventors: Anuradha Bhamidipaty, Seema Prasanth Kumar
  • Publication number: 20120152062
    Abstract: A method for recovering at least one rare earth element from a phosphor is presented. The method includes a halogenation step (a) and a reduction step (b). The phosphor is first halogenated in a molten salt to convert at least one rare earth constituent contained therein to a soluble rare earth halide. Then, the rare earth halide in the molten salt can be reduced, to convert the rare earth halide to a rare earth element in its elemental state. A method for individually recovering multiple rare earth elements from a phosphor is also presented.
    Type: Application
    Filed: December 20, 2010
    Publication date: June 21, 2012
    Applicant: GENERAL ELECTRIC COMPANY
    Inventors: Karthick Vilapakkam Gourishankar, Alok Mani Srivastava, Prasanth Kumar Nammalwar, Satya Kishore Manepalli
  • Patent number: 8137645
    Abstract: A method of recovering a rare earth constituent from a phosphor is presented. The method can include a number of steps (a) to (d). In step (a), the phosphor is fired with an alkali material under conditions sufficient to decompose the phosphor into a mixture of oxides. A residue containing rare earth oxides is extracted from the mixture in step (b). In step (c), the residue is treated to obtain a solution, which comprises rare earth constituents in salt form. Rare earth constituents are separated from the solution in step (d).
    Type: Grant
    Filed: February 23, 2010
    Date of Patent: March 20, 2012
    Assignee: General Electric Company
    Inventors: Digamber Gurudas Porob, Alok Mani Srivastava, Prasanth Kumar Nammalwar, Gopi Chandran Ramachandran, Holly Ann Comanzo
  • Publication number: 20120019126
    Abstract: An oxynitride phosphor is presented. The oxynitride phosphor has a formula: ApBqOrNs: R such that A is barium or a combination of barium with at least one of Li, Na, K, Y, Sc, Be, Mg, Ca, Sr, Ba, Zn, La, Ce, Pr, Nd, Sm, Eu, Gd, Tb, Dy, Ho, Er, Yb, and Lu; B is silicon or a combination of silicon with at least one of Al, B, Ga, and Ge; R is europium or a combination of europium with at least one of Ce, Pr, Sm, Nd, Tb, Dy, Yb, Tm, Er, Ho, and Mn. p, q, r, s are numbers such that p is greater than about 2 and less than about 6, q is greater than about 8 and less than about 10, r is greater than about 0.1 and less than about 6, and s is greater than about 10 and less than about 15. The method of preparing the oxynitride phosphors and light emitting apparatus including the oxynitride phosphors are included.
    Type: Application
    Filed: July 22, 2010
    Publication date: January 26, 2012
    Applicant: GENERAL ELECTRIC COMPANY
    Inventors: Digamber Gurudas Porob, Anant Achyut Setlur, Prasanth Kumar Nammalwar, Shyamala Halady Subraya Bhat, Satya Kishore Manepalli, Dan Hancu