Patents by Inventor Krishnamurthy Jayaraman

Krishnamurthy Jayaraman 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: 10253146
    Abstract: The disclosure relates to a nanocomposite polymeric film including a thermoplastic polymer matrix such as polypropylene or other polyolefin, a coupling agent-modified organoclay reinforcement, and a polymeric compatibilizer bound to the coupling agent-modified organoclay, in particular as a thin film with controllable thicknesses. The disclosure further relates to masterbatch additives formed from the coupling agent-modified organoclay and the polymeric compatibilizer bound to the coupling agent-modified organoclay as well as related methods for making the nanocomposite polymeric film and/or processing recycled plastics. The inclusion of the coupling agent-modified organoclay reinforcement improves the mechanical properties of the nanocomposite polymeric film and the rheological properties of polymer melts including the nanocomposite polymeric film components.
    Type: Grant
    Filed: October 14, 2016
    Date of Patent: April 9, 2019
    Assignee: BOARD OF TRUSTEES OF MICHIGAN STATE UNIVERSITY
    Inventors: Krishnamurthy Jayaraman, Weijie Ren, Rahul H. Rane
  • Patent number: 9890325
    Abstract: A method of monitoring a location of a nanoparticle within a material is described herein. The method includes the steps of providing at least one nanoclay particle, attaching a fluorescent tag to the at least one nanoclay particle, and determining a fluorescence of the fluorescent-labeled nanoclay particle. The method also includes forming the material including the at least one fluorescent-labeled nanoclay particle, depositing the material in an aqueous solution, and detecting a movement of the fluorescent-labeled nanoclay particle from the material to the aqueous solution.
    Type: Grant
    Filed: August 5, 2016
    Date of Patent: February 13, 2018
    Assignee: BOARD OF TRUSTEES OF MICHIGAN STATE UNIVERSITY
    Inventors: Maria I. Rubino, Rafael A. Auras, Krishnamurthy Jayaraman, Yining Xia, Carlos Diaz, Joe Hotchkiss
  • Publication number: 20170107341
    Abstract: The disclosure relates to a nanocomposite polymeric film including a thermoplastic polymer matrix such as polypropylene or other polyolefin, a coupling agent-modified organoclay reinforcement, and a polymeric compatibilizer bound to the coupling agent-modified organoclay, in particular as a thin film with controllable thicknesses. The disclosure further relates to masterbatch additives formed from the coupling agent-modified organoclay and the polymeric compatibilizer bound to the coupling agent-modified organoclay as well as related methods for making the nanocomposite polymeric film and/or processing recycled plastics. The inclusion of the coupling agent-modified organoclay reinforcement improves the mechanical properties of the nanocomposite polymeric film and the rheological properties of polymer melts including the nanocomposite polymeric film components.
    Type: Application
    Filed: October 14, 2016
    Publication date: April 20, 2017
    Inventors: Krishnamurthy Jayaraman, Weijie Ren, Rahul H. Rane
  • Publication number: 20160340576
    Abstract: A method of monitoring a location of a nanoparticle within a material is described herein. The method includes the steps of providing at least one nanoclay particle, attaching a fluorescent tag to the at least one nanoclay particle, and determining a fluorescence of the fluorescent-labeled nanoclay particle. The method also includes forming the material including the at least one fluorescent-labeled nanoclay particle, depositing the material in an aqueous solution, and detecting a movement of the fluorescent-labeled nanoclay particle from the material to the aqueous solution.
    Type: Application
    Filed: August 5, 2016
    Publication date: November 24, 2016
    Inventors: Maria I. Rubino, Rafael A. Auras, Krishnamurthy Jayaraman, Yining Xia, Carlos Diaz, Joe Hotchkiss
  • Patent number: 9435737
    Abstract: A method of monitoring a location of a nanoparticle within a material is described herein. The method includes the steps of providing at least one nanoclay particle, attaching a fluorescent tag to the at least one nanoclay particle, and determining a fluorescence of the fluorescent-labeled nanoclay particle. The method also includes forming the material including the at least one fluorescent-labeled nanoclay particle, depositing the material in an aqueous solution, and detecting a movement of the fluorescent-labeled nanoclay particle from the material to the aqueous solution.
    Type: Grant
    Filed: November 1, 2013
    Date of Patent: September 6, 2016
    Assignee: BOARD OF TRUSTEES OF MICHIGAN STATE UNIVERSITY
    Inventors: Maria I. Rubino, Rafael A. Auras, Krishnamurthy Jayaraman, Yining Xia, Carlos Diaz, Joe Hotchkiss
  • Patent number: 9279046
    Abstract: A foam comprising a nanocomposite comprising a bulk linear semi-crystalline polyolefin containing no cross-links or branched polymers; an organoclay; and a polymeric compatibilizer for enhancing physical interactions between the bulk linear semi-crystalline polyolefin and the organoclay, wherein the linear semi-crystalline polyolefin combines with the organoclay to form the nanocomposite is provided. Novel nanocomposites and methods of producing the nanocomposites and foams, such as flexible foams, are also provided. The resulting products are useful in a variety of applications, including thermoplastic flexible foam seals, thermoplastic foamed panels in vehicles, and thin-walled blow molded bottles.
    Type: Grant
    Filed: May 14, 2010
    Date of Patent: March 8, 2016
    Assignee: BOARD OF TRUSTEES OF MICHIGAN STATE UNIVERSITY
    Inventors: Krishnamurthy Jayaraman, Tanmay Janardhan Pathak, Amit Kumar Chaudhary
  • Publication number: 20140120627
    Abstract: A method of monitoring a location of a nanoparticle within a material is described herein. The method includes the steps of providing at least one nanoclay particle, attaching a fluorescent tag to the at least one nanoclay particle, and determining a fluorescence of the fluorescent-labeled nanoclay particle. The method also includes forming the material including the at least one fluorescent-labeled nanoclay particle, depositing the material in an aqueous solution, and detecting a movement of the fluorescent-labeled nanoclay particle from the material to the aqueous solution.
    Type: Application
    Filed: November 1, 2013
    Publication date: May 1, 2014
    Applicant: Board of Trustees of Michigan State University
    Inventors: Maria I. Rubino, Rafael A. Auras, Krishnamurthy Jayaraman, Yining Xia, Carlos Diaz, Joe Hotchkiss
  • Publication number: 20100310802
    Abstract: A foam comprising a nanocomposite comprising a bulk linear semi-crystalline polyolefin containing no cross-links or branched polymers; an organoclay; and a polymeric compatibilizer for enhancing physical interactions between the bulk linear semi-crystalline polyolefin and the organoclay, wherein the linear semi-crystalline polyolefin combines with the organoclay to form the nanocomposite is provided. Novel nanocomposites and methods of producing the nanocomposites and foams, such as flexible foams, are also provided. The resulting products are useful in a variety of applications, including thermoplastic flexible foam seals, thermoplastic foamed panels in vehicles, and thin-walled blow molded bottles.
    Type: Application
    Filed: May 14, 2010
    Publication date: December 9, 2010
    Inventors: Krishnamurthy Jayaraman, Tanmay Janardhan Pathak, Amit Kumar Chaudhary
  • Patent number: 6986992
    Abstract: This invention relates to methods and compositions for determining single nucleotide polymorphisms (SNPs) in P450 genes. In preferred embodiments, self extension of interrogation probes is prevented by using novel non self-extension probes and/or methods, thereby improving the specificity and efficiency of P450 SNP detection in target samples with minimal false positive results. The invention thus describes a variety of methods to decrease self-extension of interrogation probes. In addition, this invention provides a unique collection of P450 SNP probes on one assay, primer sequences for specific amplification of each of the seven P450 genes and amplicon control probes to evaluate whether the intended p450 gene targets were amplified successfully. The invention also describes a variety of array platforms for performing the assays of the invention; for example: CodeLinkā„¢, eSensorā„¢, multiplex arrays with cartridges etc., all described herein.
    Type: Grant
    Filed: April 1, 2002
    Date of Patent: January 17, 2006
    Assignee: Amersham Biosciences AB
    Inventors: Buena Chui, Robert Elghanian, Vineet Gupta, Krishnamurthy Jayaraman, Gretchen Kiser, Changming Li, Chang-Gong Liu, Kenneth R. Luehrsen, Abhijit Mazumder, Ramesh Ramakrishnan, Arkadiy Silbergleyt, Todd Tuggle, Carl Yamashiro, Handy Yowanto, Ekaterina Pestova, David R. Fermin, David G. Wang, Zhijie John Gu
  • Publication number: 20040229222
    Abstract: This invention relates to methods and compositions for determining single nucleotide polymorphisms (SNPs) in P450 genes. In preferred embodiments, self extension of interrogation probes is prevented by using novel non self-extension probes and/or methods, thereby improving the specificity and efficiency of P450 SNP detection in target samples with minimal false positive results. The invention thus describes a variety of methods to decrease self-extension of interrogation probes. In addition, this invention provides a unique collection of P450 SNP probes on one assay, primer sequences for specific amplification of each of the seven P450 genes and amplicon control probes to evaluate whether the intended p450 gene targets were amplified successfully. The invention also describes a variety of array platforms for performing the assays of the invention; for example: CodeLink™, eSensor™, multiplex arrays with cartridges etc., all described herein.
    Type: Application
    Filed: April 1, 2002
    Publication date: November 18, 2004
    Inventors: Buena Chui, Robert Elghanian, Vineet Gupta, Krishnamurthy Jayaraman, Gretchen Kiser, Changming Li, Chang-Gong Liu, Kenneth R. Luehrsen, Abhijit Mazumder, Ramesh Ramakrishnan, Arkadiy Silbergleyt, Todd Tuggle, Carl Yamashiro, Handy Yowanto, Ekaterina Pestova, David R. Fermin, David G. Wang, Zhijie John Gu
  • Patent number: 5123373
    Abstract: A system and method for uniformly coating one or more fibers (10) with particles of a material is described. The method uses a vibrator preferably an acoustic speaker (17b) in a housing (17c) to fluidize the particles (P.sub.1) in a chamber (17 or 30) to deposit them on spread fibers (10b). The fibers can be in the form of a tow of fibers. After the particles are coated on the fibers, the particles can be bonded to the fiber such as by using a heater (19). The resulting product has a uniform deposit of the particles and in the case of the tow of fibers can serve as a prepreg for laminate structures to be produced from the coated tow of fibers.
    Type: Grant
    Filed: November 5, 1990
    Date of Patent: June 23, 1992
    Assignee: Board of Trustees operating Michigan State University
    Inventors: Shridhar Iyer, Lawrence T. Drzal, Krishnamurthy Jayaraman
  • Patent number: 5102690
    Abstract: A system and method for uniformly coating one or more fibers (10) with particles of a material is described. The method uses a vibrator preferably an acoustic speaker (17b) in a housing (17c) to fluidize the particles (P.sub.1) in a chamber (17 or 30) to deposit them on spread fibers (10b). The fibers can be in the form of a tow of fibers. After the articles are coated on the fibers, the particles can be bonded to the fiber such as by using a heater (19). The resulting product has a uniform deposit of the particles and in the case of the tow of fibers can serve as a prepreg for laminate structures to be produced from the coated tow of fibers.
    Type: Grant
    Filed: August 12, 1991
    Date of Patent: April 7, 1992
    Assignee: Board of Trustees Operating Michigan State University
    Inventors: Shridhar Iyer, Lawrence T. Drzal, Krishnamurthy Jayaraman