Patents by Inventor Ramani Narayan

Ramani Narayan 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: 9499671
    Abstract: Preparation and use of organopolysiloxanes having carbinol groups that are bonded to the silicon atom through carbamate-containing groups. These hydrophilic polysiloxanes can be made to completely dissolve in water or behave as amphoteric surfactants by controlling the concentration of the carbinol radicals and the molecular weight of the polysiloxane.
    Type: Grant
    Filed: October 15, 2014
    Date of Patent: November 22, 2016
    Inventors: Ramani Narayan, Daniel Graiver, Sudhanwa Dewasthale
  • Publication number: 20160108179
    Abstract: Preparation and use of organopolysiloxanes having carbinol groups that are bonded to the silicon atom through carbamate-containing groups. These hydrophilic polysiloxanes can be made to completely dissolve in water or behave as amphoteric surfactants by controlling the concentration of the carbinol radicals and the molecular weight of the polysiloxane.
    Type: Application
    Filed: October 15, 2014
    Publication date: April 21, 2016
    Inventors: Ramani Narayan, Daniel Graiver, Sudhanwa Dewasthale
  • Patent number: 9273180
    Abstract: Polyol compositions containing methane linkages derived from amino acids. The polyols are obtained from the reaction of the carbonate with the cadres in the amino acids. Individual amino acids or mixtures of amino acids that are prepared from the hydrolysis of the proteins can be used.
    Type: Grant
    Filed: September 24, 2013
    Date of Patent: March 1, 2016
    Assignee: Board of Trustees of Michigan State University and Vahid Sendijarevice, joint ownership
    Inventors: Ramani Narayan, Daniel Graiver, Elodie Hablot, Vahid Sendijarevic, Siva Rama Krishna Chalasani
  • Publication number: 20150291741
    Abstract: A process of producing multi-hydroxy polyols, the process comprising providing a biomass material and transamidating the biomass material with an amine selected from the group consisting essentially of a diamine and an alkanolamine, to provide low molecular weight derived amino-acids or derived oligomers of proteins. Thereafter, reacting the derived amino-acids or derived oligomers with a carbonate to provide hydroxyl terminated urethane oligomers.
    Type: Application
    Filed: December 11, 2014
    Publication date: October 15, 2015
    Inventors: Ramani Narayan, Daniel Graiver, Elodie Hablot
  • Patent number: 9088660
    Abstract: A system includes receiving a voicemail data object at a business application system. The voicemail data object is associated with a voicemail originated from a caller, and includes a caller identifier identifying the caller that originated the voicemail. The voicemail data object is automatically associated with an entity data object of the business application system, the association being based on the caller identifier. A voicemail indicator is presented to a user of the business application system based on the association, the presentation of the voicemail indicator being in conjunction with presenting of caller identification information for the caller.
    Type: Grant
    Filed: September 12, 2008
    Date of Patent: July 21, 2015
    Assignee: BT Americas Inc.
    Inventors: Gregory Lloyd Goldfarb, Ramani Narayan
  • Patent number: 9000103
    Abstract: A composition of matter comprising an interpenetrating polymer network of a combination of a silanol-containing polysiloxane phase and a silylated triglyceride oil phase. The two phases are mixed and covalently bound to each other via siloxane crosslinks. A method for producing interpenetrating polymer networks. The method comprises providing triglycerides from oils or fats and reacting the triglycerides with a reactive silane to form a silylated triglyceride oil. The silylated triglyceride oil and a silanol terminated polysiloxane are emulsified with water in a predetermined ratio. Thereafter, crosslinking agents are added and the water is removed from the emulsions providing siloxane crosslinks between the two intimately mixed immiscible phases.
    Type: Grant
    Filed: August 13, 2013
    Date of Patent: April 7, 2015
    Inventors: Ramani Narayan, Daniel Gravier, Sudhanwa Dewasthale, Elodie Halbot
  • Publication number: 20140194567
    Abstract: A composition of matter comprising an interpenetrating polymer network of a combination of a silanol-containing polysiloxane phase and a silylated triglyceride oil phase. The two phases are mixed and covalently bound to each other via siloxane crosslinks. A method for producing interpenetrating polymer networks. The method comprises providing triglycerides from oils or fats and reacting the triglycerides with a reactive silane to form a silylated triglyceride oil. The silylated triglyceride oil and a silanol terminated polysiloxane are emulsified with water in a predetermined ratio. Thereafter, crosslinking agents are added and the water is removed from the emulsions providing siloxane crosslinks between the two intimately mixed immiscible phases.
    Type: Application
    Filed: August 13, 2013
    Publication date: July 10, 2014
    Inventors: Ramani Narayan, Daniel Gravier, Sudhanwa Dewasthale, Elodie Halbot
  • Publication number: 20140171535
    Abstract: Polyol compositions containing methane linkages derived from amino acids. The polyols are obtained from the reaction of the carbonate with the cadres in the amino acids. Individual amino acids or mixtures of amino acids that are prepared from the hydrolysis of the proteins can be used.
    Type: Application
    Filed: September 24, 2013
    Publication date: June 19, 2014
    Applicant: BioPlastic Polymers and Composites, LLC.
    Inventors: Ramani Narayan, Daniel Graiver, Elodie Hablot, Vahid Sendijarevic, Siva Rama Krishna Chalasani
  • Publication number: 20130023674
    Abstract: Methods and systems are disclosed for producing lactide, which can be used for PLA production or other valuable bioproducts. PLA is heated to undergo thermal depolymerization to recover lactide. The lactide can be used for PLA production or other valuable bioproducts.
    Type: Application
    Filed: March 15, 2012
    Publication date: January 24, 2013
    Inventors: Ramani Narayan, Wei-Min Wu, Craig S. Criddle
  • Patent number: 8349032
    Abstract: Fuel oxygenates comprised of fatty acid or fatty acid ester derivatives which have been reacted with ozone; a base; and a lower alkanol (1 to 8 carbon atoms) are described. The oxygenates comprise ester groups at a point of cleavage by the ozone which provide oxygen in the oxygenate.
    Type: Grant
    Filed: April 16, 2008
    Date of Patent: January 8, 2013
    Assignees: Board of Trustees of Michigan State University, Bioplastic Polymers and Composites, LLC
    Inventors: Ramani Narayan, Daniel Graiver, Kenneth W. Farminer
  • Patent number: 8217193
    Abstract: A process for the preparation of new polyols and polyesters from a natural oil or other unsaturated fatty acid esters is described. The process involves ozone cleavage of double bonds in the fatty acid chains of the oils along with coupling of a hydroxylated compound such as a mono-alcohol, a diol, or a polyol to the cleaved ends of the molecules resulting from the cleavage with a base. The resulting polyols and polyesters are as intermediates for polymers.
    Type: Grant
    Filed: September 15, 2009
    Date of Patent: July 10, 2012
    Assignees: Board of Trustees of Michigan State University, Bioplastic Polymers and Composites, LLC
    Inventors: Ramani Narayan, Daniel Graiver, Kenneth W. Farminer, Phuong T. Tran, Tam Tran, legal representative
  • Patent number: 8110036
    Abstract: A moisture-curable, silane-modified oil is disclosed. The silane-modified oil includes an unsaturated oil having at least one unsaturated aliphatic hydrocarbon chain per molecule of the unsaturated oil, and at least one hydrolysable silyl group grafted to the unsaturated aliphatic hydrocarbon chain. The silane-modified oil has a degree of unsaturation that is substantially similar that of the unsaturated oil. A process for forming the moisture-curable, silane-modified oil according to the disclosure includes reacting the unsaturated oil with an unsaturated hydrolysable silane in the presence of a free radical initiator. Also disclosed is a cured silane-modified oil which includes the reaction product of the silane-modified oil and water. Compositions according to the disclosure have relatively low viscosities (facilitating their application to a substrate) and have relatively high levels of silane grafting (resulting in non-leaching cured compositions with a high gel content).
    Type: Grant
    Filed: October 6, 2008
    Date of Patent: February 7, 2012
    Assignees: Board of Trustees of Michigan State Univeristy, Bioplastic Polymers and Composites, LLC
    Inventors: Ramani Narayan, Daniel Graiver, Kenneth W. Farminer, Madhusudhan Srinivasan
  • Patent number: 8008373
    Abstract: A biodegradable thermoplastic polymer masterbatch composition comprising a blend of at least one biodegradable thermoplastic polymer containing high loading of a particulate filler uniformly dispersed therein. The amount of the biodegradable thermoplastic polymer is generally from about 25% to about 50% by weight and the amount of the filler is from about 75% to about 50% by weight, based upon the total amount of one biodegradable polymer and the at least one filler. The uniform dispersion of the fillers is desirably obtained by adding small particles of the filler to a melt of the biodegradable polymer and blending using high shear equipment with special screw geometry. The masterbatch composition is then physically blended with additional biodegradable thermoplastic polymer and extrusion processed into final articles such as blown and cast films, molded products, and the like.
    Type: Grant
    Filed: October 31, 2007
    Date of Patent: August 30, 2011
    Assignee: Northern Technologies International Corp.
    Inventors: Ramani Narayan, Sunder Balakrishnan, Donald A. Kubik, Mehmet A. Gencer
  • Patent number: 7985794
    Abstract: A starch-polyester graft copolymer and chemically modified starch-polyester graft copolymer composition comprising a chemically modified starch or chemically modified starch-nanoclay product is described. The composition can be produced continuously in a twin-screw co-rotating extruder. The starch-polyester graft copolymer can be solvent cast, melt cast and blown into clear transparent film particularly for use in single use disposable applications and can be biodegradable.
    Type: Grant
    Filed: December 7, 2009
    Date of Patent: July 26, 2011
    Assignee: Board of Trustees of Michigan State University
    Inventors: Ramani Narayan, Sunder Balakrishnan, Yogaraj Nabar, Jean-Marie Raquez, Philippe Dubois
  • Publication number: 20100120943
    Abstract: A starch-polyester graft copolymer and chemically modified starch-polyester graft copolymer composition comprising a chemically modified starch or chemically modified starch-nanoclay product is described. The composition can be produced continuously in a twin-screw co-rotating extruder. The starch-polyester graft copolymer can be solvent cast, melt cast and blown into clear transparent film particularly for use in single use disposable applications and can be biodegradable.
    Type: Application
    Filed: December 7, 2009
    Publication date: May 13, 2010
    Applicant: Board of Trustees of Michigan State University
    Inventors: Ramani Narayan, Sunder Balakrishnan, Yogaraj Nabar, Jean-Marie Raquez, Philippe Dubois
  • Publication number: 20100084603
    Abstract: A process for the preparation of new polyols and polyesters from a natural oil or other unsaturated fatty acid esters is described. The process involves ozone cleavage of double bonds in the fatty acid chains of the oils along with coupling of a hydroxylated compound such as a mono-alcohol, a diol, or a polyol to the cleaved ends of the molecules resulting from the cleavage with a base. The resulting polyols and polyesters are as intermediates for polymers.
    Type: Application
    Filed: September 15, 2009
    Publication date: April 8, 2010
    Applicants: Board of Trustees of Michigan State University, Bioplastic Polymers and Composites, LLC
    Inventors: Ramani Narayan, Daniel Graiver, Kenneth W. Farminer, Phuong T. Tran, Tam Tran
  • Publication number: 20100083871
    Abstract: A moisture-curable, silane-modified oil is disclosed. The silane-modified oil includes an unsaturated oil having at least one unsaturated aliphatic hydrocarbon chain per molecule of the unsaturated oil, and at least one hydrolysable silyl group grafted to the unsaturated aliphatic hydrocarbon chain. The silane-modified oil has a degree of unsaturation that is substantially similar that of the unsaturated oil. A process for forming the moisture-curable, silane-modified oil according to the disclosure includes reacting the unsaturated oil with an unsaturated hydrolysable silane in the presence of a free radical initiator. Also disclosed is a cured silane-modified oil which includes the reaction product of the silane-modified oil and water. Compositions according to the disclosure have relatively low viscosities (facilitating their application to a substrate) and have relatively high levels of silane grafting (resulting in non-leaching cured compositions with a high gel content).
    Type: Application
    Filed: October 6, 2008
    Publication date: April 8, 2010
    Applicants: Board of Trustees of Michigan State University, Bioplastic Polymers and Composites, LLC
    Inventors: Ramani Narayan, Daniel Graiver, Kenneth W. Farminer, Madhusudhan Srinivasan
  • Patent number: 7638560
    Abstract: A foamed starch-polyester graft copolymer and chemically modified starch-polyester graft copolymer composition comprising a chemically modified starch or chemically modified starch-nanoclay product is described. The composition can be produced continuously in a twin-screw co-rotating extruder in the presence of a blowing agent. The foams are biodegradable.
    Type: Grant
    Filed: May 18, 2005
    Date of Patent: December 29, 2009
    Assignee: Board of Trustees of Michigan State University
    Inventors: Ramani Narayan, Yogaraj Nabar
  • Patent number: 7629405
    Abstract: A starch-polyester graft copolymer and chemically modified starch-polyester graft copolymer composition comprising a chemically modified starch or chemically modified starch-nanoclay product is described. The composition can be produced continuously in a twin-screw co-rotating extruder. The starch-polyester graft copolymer can be solvent cast, melt cast and blown into clear transparent film particularly for use in single use disposable applications and can be biodegradable.
    Type: Grant
    Filed: November 19, 2004
    Date of Patent: December 8, 2009
    Assignee: Board of Trustees of Michigan State University
    Inventors: Ramani Narayan, Sunder Balakrishnan, Yogaraj Nabar, Jean-Marie Raquez, Philippe Dubois
  • Patent number: 7601677
    Abstract: A method for lubrication by supplying a liquid lubricant to moving metal parts, more than fifty percent by weight of the liquid lubricant being a triglyceride vegetable oil having a saturated fatty acid content of less than nine percent by weight of the triglyceride vegetable oil and a polyunsaturated fatty acid content of more than seventy percent by weight of the triglyceride vegetable oil, the triglyceride vegetable oil having an American Petroleum Institute Thermo-Oxidation Engine Oil Simulation Test rod residue weight of less than thirty five milligrams and a pour point of less than minus twenty degrees Celsius.
    Type: Grant
    Filed: August 11, 2004
    Date of Patent: October 13, 2009
    Inventors: Daniel Graiver, Kenneth W. Farminer, Ramani Narayan, Phuong T. Tran