Patents by Inventor Sriramakrishna Maruvada

Sriramakrishna Maruvada 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: 20160297725
    Abstract: A controlled release fertilizer composition and methods to produce the controlled release fertilizer composition. The controlled release fertilizer composition includes a fertilizer core that is coated with a polymeric layer, such as polyurethane, that includes a small molecule diol.
    Type: Application
    Filed: May 16, 2014
    Publication date: October 13, 2016
    Applicant: Agrium U.S. Inc.
    Inventors: Young G No, Kai Chen, Sriramakrishna Maruvada
  • Patent number: 9156745
    Abstract: A controlled release fertilizer composition and methods to produce the controlled release fertilizer composition. The controlled release fertilizer composition includes a fertilizer core that is coated with a polymeric layer, such as polyurethane, that includes an organic carbonate additive.
    Type: Grant
    Filed: April 30, 2014
    Date of Patent: October 13, 2015
    Assignee: Koch Agronomic Services, LLC
    Inventors: Garrard L. Hargrove, Sriramakrishna Maruvada
  • Patent number: 8888887
    Abstract: A controlled release fertilizer material comprising a particulate plant nutrient surrounded by a coating of a mixture including an isocyanate and a polyol, and further comprising a modified wax that may include a polyhydroxyl compound in which the wax and/or the polyhydroxyl compound are cross-linked with a sulfur or oxygen or a peroxide cross-linking moiety. In certain embodiments, the wax and polyhydroxyl compound are cross-linked at unsaturated sites in the wax or polyhydroxyl compound using heat, UV or ionizing radiation.
    Type: Grant
    Filed: November 8, 2011
    Date of Patent: November 18, 2014
    Assignee: Agrium Advanced Technologies (U.S.) Inc.
    Inventors: Garrard Lee Hargrove, Sriramakrishna Maruvada, Robert Scott Wilson, Nick Peter Wynnyk, Baozhong Xing
  • Publication number: 20140331727
    Abstract: A controlled release fertilizer composition and methods to produce the controlled release fertilizer composition. The controlled release fertilizer composition includes a fertilizer core that is coated with a polymeric layer, such as polyurethane, that includes an organic carbonate additive.
    Type: Application
    Filed: April 30, 2014
    Publication date: November 13, 2014
    Inventors: Garrard L. Hargrove, Sriramakrishna Maruvada
  • Patent number: 8790437
    Abstract: A controlled release fertilizer material comprising a particulate plant nutrient surrounded by a coating which is the reaction product of a mixture including a cross-linked polyol, an isocyanate and a wax is described. The cross-linked polyol is a reaction product of a polyhydroxyl compound, such as glycerol, and a triglyceride and the monoglyceride and/or diglyceride products are cross-linked with sulfur, oxygen and/or a peroxide cross-linking moiety, or are directly cross-linked at unsaturated sites in the monoglycerides and/or diglycerides.
    Type: Grant
    Filed: November 8, 2011
    Date of Patent: July 29, 2014
    Assignee: Agrium Advanced Technologies (U.S.) Inc.
    Inventors: Romem Avdala, Leslie L. Carstens, Garrard Lee Hargrove, Sriramakrishna Maruvada, Baozhong Xing
  • Patent number: 8389648
    Abstract: A composition, comprising, based on the total weight of the polymer components in the composition, 1 to 40 wt. % of an aromatic polycarbonate, 30 to 98.8 wt. % of a polysiloxane-polycarbonate block copolymer, and 0.1 to 10 wt. % of a polysiloxane-polyimide block copolymer comprising more than 20 wt. % polysiloxane blocks, based on the total weight of the polysiloxane-polyimide copolymer. The compositions provide articles with low haze, high luminous transmittance, and good hydro-aging properties. The articles can further be formulated to have excellent flame retardance, particularly when KSS is used.
    Type: Grant
    Filed: August 2, 2011
    Date of Patent: March 5, 2013
    Assignee: Sabic Innovative Plastics IP B.V.
    Inventors: Purushotham Adoni, Dibakar Dhara, Sriramakrishna Maruvada, Roopali Rai, Veeraraghavan Srinivasan
  • Patent number: 8283015
    Abstract: An article comprising the compound of Formula (I): wherein R1 is selected from the group consisting of an aliphatic functionality having 1 to 12 carbons, an aromatic functionality having 3 to 20 carbons, and a cycloaliphatic functionality having 3 to 20 carbons; R2 and R3 are independently selected from the group consisting of a hydroxyl group, a halogen atom, an aliphatic functionality having 1 to 12 carbons, an aromatic functionality having 3 to 20 carbons, and a cycloaliphatic functionality having 3 to 20 carbons; Y is either an oxygen atom or a sulfur atom; “n” has a value of 0 to 4; and “m” has a value of 0 to 3.
    Type: Grant
    Filed: April 18, 2011
    Date of Patent: October 9, 2012
    Assignee: Sabic Innovative Plastics IP B.V.
    Inventors: Yogendrasinh Bharatsinh Chauhan, Adil Minoo Dhalla, Sriramakrishna Maruvada, Shantaram Narayan Naik, Vandita Pai-Paranjape, Kiran Puthamane, Philippe Schottland
  • Patent number: 8178702
    Abstract: A composition comprising compound of formula I, a process for preparing the composition comprising compound of formula I, methods of authentication for an article comprising compound of formula I or compound of formula II, authentication technology for polymer based articles comprising compound of formula I or formula II, methods of facilitating such authentication and method of making articles capable of authentication.
    Type: Grant
    Filed: May 16, 2008
    Date of Patent: May 15, 2012
    Assignee: Sabic Innovative Plastics IP B.V.
    Inventors: Yogendrasinh Chauhan, Mahesh Chaudhari, Adil Dhalla, Sriramakrishna Maruvada, Shantaram Naik, Vandita Pai-Paranjape, Philippe Schottland, Ganapati Shankarling, Kiran Puthamane, Meerakani Sait
  • Publication number: 20120111075
    Abstract: A controlled release fertilizer material comprising a particulate plant nutrient surrounded by, a coating of a mixture including an isocyanate and a polyol, and further comprising a modified wax that may include a polyhydroxyt compound in which the wax and/or the polyhydroxyl compound are cross-linked with a sulfur or oxygen or a peroxide cross-linking moiety. In certain embodiments, the wax and polyhydroxyl compound are cross-linked at unsaturated sites in the wax or polyhydroxyl compound using heat, UV or ionizing radiation.
    Type: Application
    Filed: November 8, 2011
    Publication date: May 10, 2012
    Applicant: Agrium Advanced Technologies
    Inventors: GARRARD LEE HARGROVE, Sriramakrishna Maruvada, Robert Scott Wilson, Nick Peter Wynnyk, Baozhong Xing
  • Publication number: 20120111076
    Abstract: A controlled release fertilizer material comprising a particulate plant nutrient surrounded by a coating which is the reaction product of a mixture including a cross-linked polyol, an isocyanate and a wax is described. The cross-linked polyol is a reaction product of a polyhydroxyl compound, such as glycerol, and a triglyceride and the monoglyceride and/or diglyceride products are cross-linked with sulfur, oxygen and/or a peroxide cross-linking moiety, or are directly cross-linked at unsaturated sites in the monoglycerides and/or diglycerides.
    Type: Application
    Filed: November 8, 2011
    Publication date: May 10, 2012
    Applicant: Agrium Advanced Technologies
    Inventors: ROMEM AVDALA, Leslie L. Carstens, Garrard Lee Hargrove, Sriramakrishna Maruvada, Baozhong Xing
  • Publication number: 20110288214
    Abstract: A composition, comprising, based on the total weight of the polymer components in the composition, 1 to 40 wt. % of an aromatic polycarbonate, 30 to 98.8 wt. % of a polysiloxane-polycarbonate block copolymer, and 0.1 to 10 wt. % of a polysiloxane-polyimide block copolymer comprising more than 20 wt. % polysiloxane blocks, based on the total weight of the polysiloxane-polyimide copolymer. The compositions provide articles with low haze, high luminous transmittance, and good hydro-aging properties. The articles can further be formulated to have excellent flame retardance, particularly when KSS is used.
    Type: Application
    Filed: August 2, 2011
    Publication date: November 24, 2011
    Applicant: SABIC INNOVATIVE PLASTICS IP B.V.
    Inventors: Purushotham ADONI, Dibakar DHARA, Sriramakrishna MARUVADA, Roopali RAI, Veeraraghavan SRINIVASAN
  • Patent number: 8057886
    Abstract: A system for altering a functionality of an optical article from a pre-activated state to an activated state, comprising an optical article comprising an optical data layer for storing data, an external radiation source for generating an external stimulus adapted to interact with the optical article, such interaction causing a change in optical accessibility of optically stored data, a directing material, wherein said directing material is for directing the external stimulus to selective portions of the optical article, thereby altering the functionality of the optical article from a pre-activated state to an activated state; a convertible element capable of responding to the external stimulus to irreversibly alter the optical article from the pre-activated state of functionality to the activated state of functionality, wherein said convertible element comprises a color-shift dye, a magnetic material, a thermo-chromic material, a magneto-optical material, a light scattering material, a phase-change material,
    Type: Grant
    Filed: February 12, 2010
    Date of Patent: November 15, 2011
    Assignee: NBCUniversal Media, LLC
    Inventors: Marc Brian Wisnudel, Terry Michael Topka, Pingfan Peter Wu, Radislav Alexandrovich Potyrailo, David Gilles Gascoyne, William David Smith, Adil Minoo Dhalla, Yogendrasinh Bharatsinh Chauhan, Rupesh Bhikaji Pawar, Bharat Singh, Sriramakrishna Maruvada, Vandita Pai-Paranjape, Kenneth Brakeley Welles, II, Philippe Schottland, Eugene George Olczak, Ashok Menon
  • Publication number: 20110196075
    Abstract: An article comprising the compound of Formula (I): wherein R1 is selected from the group consisting of an aliphatic functionality having 1 to 12 carbons, an aromatic functionality having 3 to 20 carbons, and a cycloaliphatic functionality having 3 to 20 carbons; R2 and R3 are independently selected from the group consisting of a hydroxyl group, a halogen atom, an aliphatic functionality having 1 to 12 carbons, an aromatic functionality having 3 to 20 carbons, and a cycloaliphatic functionality having 3 to 20 carbons; Y is either an oxygen atom or a sulfur atom; “n” has a value of 0 to 4; and “m” has a value of 0 to 3.
    Type: Application
    Filed: April 18, 2011
    Publication date: August 11, 2011
    Inventors: Yogendrasinh Bharatsinh Chauhan, Adil Minoo Dhalla, Sriramakrishna Maruvada, Shantaram Narayan Naik, Vandita Pai-Paranjape, Kiran Puthamane, Philippe Schottland
  • Patent number: 7994254
    Abstract: A composition, comprising, based on the total weight of the polymer components in the composition, 1 to 40 wt. % of an aromatic polycarbonate, 30 to 98.8 wt. % of a polysiloxane-polycarbonate block copolymer, and 0.1 to 10 wt. % of a polysiloxane-polyimide block copolymer comprising more than 20 wt. % polysiloxane blocks, based on the total weight of the polysiloxane-polyimide copolymer. The compositions provide articles with low haze, high luminous transmittance, and good hydro-aging properties. The articles can further be formulated to have excellent flame retardance, particularly when KSS is used.
    Type: Grant
    Filed: June 20, 2008
    Date of Patent: August 9, 2011
    Assignee: Sabic Innovative Plastics IP B.V.
    Inventors: Veeraraghavan Srinivasan, Roopali Rai, Dibakar Dhara, Sriramakrishna Maruvada, Purushotham Adoni
  • Patent number: 7928168
    Abstract: A polymer composition is provided which is white and opaque (i.e. shields from light). The polymer composition comprises a blend of (i) a silicon-free polycarbonate polymer and (ii) a polycarbonate-polysiloxane copolymer; a whitener such as titanium dioxide; and (iii) a non-white colorant such as carbon black. The resulting composition, when molded and measured at a thickness of 0.75 mm, has an L* of greater than 80 and a % T of less than 1%. The composition also has good impact strength at low temperatures and good stability during processing.
    Type: Grant
    Filed: March 23, 2007
    Date of Patent: April 19, 2011
    Assignee: Sabic Innovative Plastics IP B.V.
    Inventors: Huihui Li, Sriramakrishna Maruvada, Yaming Niu, Jong-Hyun Park, Jingwu Yang
  • Publication number: 20100258745
    Abstract: A system for altering a functionality of an optical article from a pre-activated state to an activated state, comprising an optical article comprising an optical data layer for storing data, an external radiation source for generating an external stimulus adapted to interact with the optical article, such interaction causing a change in optical accessibility of optically stored data, a directing material, wherein said directing material is for directing the external stimulus to selective portions of the optical article, thereby altering the functionality of the optical article from a pre-activated state to an activated state; a convertible element capable of responding to the external stimulus to irreversibly alter the optical article from the pre-activated state of functionality to the activated state of functionality, wherein said convertible element comprises a color-shift dye, a magnetic material, a thermo-chromic material, a magneto-optical material, a light scattering material, a phase-change material,
    Type: Application
    Filed: February 12, 2010
    Publication date: October 14, 2010
    Applicant: GENERAL ELECTRIC COMPANY
    Inventors: Marc Brian Wisnudel, Terry Michael Topka, Pingfan Peter Wu, Radislav Alexandrovich Potyrailo, David Gilles Gascoyne, William David Smith, Adil Minoo Dhalla, Yogendrasinh Bharatsinh Chauhan, Rupesh Bhikaji Pawar, Bharat Singh, Sriramakrishna Maruvada, Vandita Pai-Paranjape, Kenneth Brakeley Welles, II, Philippe Schottland, Eugene George Olczak, Ashok Menon
  • Patent number: 7649032
    Abstract: A polycarbonate composition comprising a polycarbonate-polysiloxane copolymer resin and a glass flake additive wherein the polycarbonate-polysiloxane copolymer resin has a silicone content in the range of from 3.5 weight % to 7 weight % based on the total weight of the polycarbonate composition and wherein the polycarbonate-polysiloxane copolymer has a haze of less than 10% and wherein the glass flake additive is present in the range of 0.025 weight % to 0.70 weight % based on the total weight of the polycarbonate composition.
    Type: Grant
    Filed: December 17, 2004
    Date of Patent: January 19, 2010
    Assignee: SABIC Innovative Plastics IP B.V.
    Inventors: Brett D. Ermi, Sriramakrishna Maruvada, Niles Richard Rosenquist, Philippe Schottland
  • Patent number: 7645884
    Abstract: Disclosed are compositions comprising at least one [benzo[4,5]imidazo(heterocycle)] compound, said [benzo[4,5]imidazo(heterocycle)] compound selected from the group consisting of structures I and II, wherein R1 and R2 are independently selected from the group consisting of a hydrogen atom, electron withdrawing group, organic group, divalent 1,2-cycloalkylidene group, or combinations thereof; “q” is independently an integer from 1-4, L is a linking group, and “r” is independently 0 or 1; said at least one [benzo[4,5]imidazo(heterocycle)] compound being present at a concentration sufficient to cause said composition to exhibit upon exposure to an excitation radiation having a wavelength of from about 330 nanometers to about 390 nanometers, a maximum fluorescence emission wavelength of greater than or equal to about 470 nanometers; and a Stokes shift of greater than or equal to about 80 nanometers; wherein the wavelengths are measured in bisphenol A polycarbonate matrix.
    Type: Grant
    Filed: May 9, 2007
    Date of Patent: January 12, 2010
    Assignee: SABIC Innovative Plastics IP B.V.
    Inventors: Yogendrasinh Chauhan, Adil Dhalla, Sriramakrishna Maruvada, Shantaram Naik, Kiran Puthamane, Meerakani Sait, Philippe Schottland, Ganapati Shankarling, Vandita Pai-paranjape
  • Publication number: 20090318629
    Abstract: A composition, comprising, based on the total weight of the polymer components in the composition, 1 to 40 wt. % of an aromatic polycarbonate, 30 to 98.8 wt. % of a polysiloxane-polycarbonate block copolymer, and 0.1 to 10 wt. % of a polysiloxane-polyimide block copolymer comprising more than 20 wt. % polysiloxane blocks, based on the total weight of the polysiloxane-polyimide copolymer. The compositions provide articles with low haze, high luminous transmittance, and good hydro-aging properties. The articles can further be formulated to have excellent flame retardance, particularly when KSS is used.
    Type: Application
    Filed: June 20, 2008
    Publication date: December 24, 2009
    Applicant: SABIC INNOVATIVE PLASTICS IP B.V.
    Inventors: Purushotham ADONI, Dibakar DHARA, Sriramakrishna MARUVADA, Roopali RAI, Veeraraghavan SRINIVASAN
  • Patent number: 7635778
    Abstract: A composition comprising compound of formula I, a process for preparing the composition comprising compound of formula I, methods of authentication for an article comprising compound of formula I or compound of formula II, authentication technology for polymer based articles comprising compound of formula I or formula II, methods of facilitating such authentication and method of making articles capable of authentication.
    Type: Grant
    Filed: December 17, 2004
    Date of Patent: December 22, 2009
    Assignee: SABIC Innovative Plastics IP B.V.
    Inventors: Yogendrasinh Chauhan, Mahesh Chaudhari, Adil Dhalla, Sriramakrishna Maruvada, Shantaram Naik, Vandita Pai-Paranjape, Philippe Schottland, Ganapati Shankarling, Kiran Puthamane, Meerakani Sait