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).
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Publication number: 20160297725Abstract: 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: ApplicationFiled: May 16, 2014Publication date: October 13, 2016Applicant: Agrium U.S. Inc.Inventors: Young G No, Kai Chen, Sriramakrishna Maruvada
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Patent number: 9156745Abstract: 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: GrantFiled: April 30, 2014Date of Patent: October 13, 2015Assignee: Koch Agronomic Services, LLCInventors: Garrard L. Hargrove, Sriramakrishna Maruvada
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Patent number: 8888887Abstract: 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: GrantFiled: November 8, 2011Date of Patent: November 18, 2014Assignee: Agrium Advanced Technologies (U.S.) Inc.Inventors: Garrard Lee Hargrove, Sriramakrishna Maruvada, Robert Scott Wilson, Nick Peter Wynnyk, Baozhong Xing
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Publication number: 20140331727Abstract: 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: ApplicationFiled: April 30, 2014Publication date: November 13, 2014Inventors: Garrard L. Hargrove, Sriramakrishna Maruvada
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Patent number: 8790437Abstract: 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: GrantFiled: November 8, 2011Date of Patent: July 29, 2014Assignee: Agrium Advanced Technologies (U.S.) Inc.Inventors: Romem Avdala, Leslie L. Carstens, Garrard Lee Hargrove, Sriramakrishna Maruvada, Baozhong Xing
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Patent number: 8389648Abstract: 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: GrantFiled: August 2, 2011Date of Patent: March 5, 2013Assignee: Sabic Innovative Plastics IP B.V.Inventors: Purushotham Adoni, Dibakar Dhara, Sriramakrishna Maruvada, Roopali Rai, Veeraraghavan Srinivasan
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Patent number: 8283015Abstract: 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: GrantFiled: April 18, 2011Date of Patent: October 9, 2012Assignee: 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
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Patent number: 8178702Abstract: 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: GrantFiled: May 16, 2008Date of Patent: May 15, 2012Assignee: 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
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Publication number: 20120111076Abstract: 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: ApplicationFiled: November 8, 2011Publication date: May 10, 2012Applicant: Agrium Advanced TechnologiesInventors: ROMEM AVDALA, Leslie L. Carstens, Garrard Lee Hargrove, Sriramakrishna Maruvada, Baozhong Xing
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Publication number: 20120111075Abstract: 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: ApplicationFiled: November 8, 2011Publication date: May 10, 2012Applicant: Agrium Advanced TechnologiesInventors: GARRARD LEE HARGROVE, Sriramakrishna Maruvada, Robert Scott Wilson, Nick Peter Wynnyk, Baozhong Xing
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Publication number: 20110288214Abstract: 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: ApplicationFiled: August 2, 2011Publication date: November 24, 2011Applicant: SABIC INNOVATIVE PLASTICS IP B.V.Inventors: Purushotham ADONI, Dibakar DHARA, Sriramakrishna MARUVADA, Roopali RAI, Veeraraghavan SRINIVASAN
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Patent number: 8057886Abstract: 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: GrantFiled: February 12, 2010Date of Patent: November 15, 2011Assignee: NBCUniversal Media, LLCInventors: 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
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Publication number: 20110196075Abstract: 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: ApplicationFiled: April 18, 2011Publication date: August 11, 2011Inventors: Yogendrasinh Bharatsinh Chauhan, Adil Minoo Dhalla, Sriramakrishna Maruvada, Shantaram Narayan Naik, Vandita Pai-Paranjape, Kiran Puthamane, Philippe Schottland
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Patent number: 7994254Abstract: 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: GrantFiled: June 20, 2008Date of Patent: August 9, 2011Assignee: Sabic Innovative Plastics IP B.V.Inventors: Veeraraghavan Srinivasan, Roopali Rai, Dibakar Dhara, Sriramakrishna Maruvada, Purushotham Adoni
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Patent number: 7928168Abstract: 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: GrantFiled: March 23, 2007Date of Patent: April 19, 2011Assignee: Sabic Innovative Plastics IP B.V.Inventors: Huihui Li, Sriramakrishna Maruvada, Yaming Niu, Jong-Hyun Park, Jingwu Yang
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Publication number: 20100258745Abstract: 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: ApplicationFiled: February 12, 2010Publication date: October 14, 2010Applicant: GENERAL ELECTRIC COMPANYInventors: 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
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Patent number: 7649032Abstract: 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: GrantFiled: December 17, 2004Date of Patent: January 19, 2010Assignee: SABIC Innovative Plastics IP B.V.Inventors: Brett D. Ermi, Sriramakrishna Maruvada, Niles Richard Rosenquist, Philippe Schottland
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Patent number: 7645884Abstract: 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: GrantFiled: May 9, 2007Date of Patent: January 12, 2010Assignee: 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
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Publication number: 20090318629Abstract: 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: ApplicationFiled: June 20, 2008Publication date: December 24, 2009Applicant: SABIC INNOVATIVE PLASTICS IP B.V.Inventors: Purushotham ADONI, Dibakar DHARA, Sriramakrishna MARUVADA, Roopali RAI, Veeraraghavan SRINIVASAN
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Patent number: 7635778Abstract: 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: GrantFiled: December 17, 2004Date of Patent: December 22, 2009Assignee: 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