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).
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Patent number: 10253146Abstract: 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: GrantFiled: October 14, 2016Date of Patent: April 9, 2019Assignee: BOARD OF TRUSTEES OF MICHIGAN STATE UNIVERSITYInventors: Krishnamurthy Jayaraman, Weijie Ren, Rahul H. Rane
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Patent number: 9890325Abstract: 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: GrantFiled: August 5, 2016Date of Patent: February 13, 2018Assignee: BOARD OF TRUSTEES OF MICHIGAN STATE UNIVERSITYInventors: Maria I. Rubino, Rafael A. Auras, Krishnamurthy Jayaraman, Yining Xia, Carlos Diaz, Joe Hotchkiss
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Publication number: 20170107341Abstract: 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: ApplicationFiled: October 14, 2016Publication date: April 20, 2017Inventors: Krishnamurthy Jayaraman, Weijie Ren, Rahul H. Rane
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Publication number: 20160340576Abstract: 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: ApplicationFiled: August 5, 2016Publication date: November 24, 2016Inventors: Maria I. Rubino, Rafael A. Auras, Krishnamurthy Jayaraman, Yining Xia, Carlos Diaz, Joe Hotchkiss
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Patent number: 9435737Abstract: 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: GrantFiled: November 1, 2013Date of Patent: September 6, 2016Assignee: BOARD OF TRUSTEES OF MICHIGAN STATE UNIVERSITYInventors: Maria I. Rubino, Rafael A. Auras, Krishnamurthy Jayaraman, Yining Xia, Carlos Diaz, Joe Hotchkiss
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Patent number: 9279046Abstract: 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: GrantFiled: May 14, 2010Date of Patent: March 8, 2016Assignee: BOARD OF TRUSTEES OF MICHIGAN STATE UNIVERSITYInventors: Krishnamurthy Jayaraman, Tanmay Janardhan Pathak, Amit Kumar Chaudhary
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Publication number: 20140120627Abstract: 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: ApplicationFiled: November 1, 2013Publication date: May 1, 2014Applicant: Board of Trustees of Michigan State UniversityInventors: Maria I. Rubino, Rafael A. Auras, Krishnamurthy Jayaraman, Yining Xia, Carlos Diaz, Joe Hotchkiss
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Publication number: 20100310802Abstract: 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: ApplicationFiled: May 14, 2010Publication date: December 9, 2010Inventors: Krishnamurthy Jayaraman, Tanmay Janardhan Pathak, Amit Kumar Chaudhary
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Patent number: 6986992Abstract: 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: GrantFiled: April 1, 2002Date of Patent: January 17, 2006Assignee: Amersham Biosciences ABInventors: 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
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Publication number: 20040229222Abstract: 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: ApplicationFiled: April 1, 2002Publication date: November 18, 2004Inventors: 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
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Patent number: 5123373Abstract: 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: GrantFiled: November 5, 1990Date of Patent: June 23, 1992Assignee: Board of Trustees operating Michigan State UniversityInventors: Shridhar Iyer, Lawrence T. Drzal, Krishnamurthy Jayaraman
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Patent number: 5102690Abstract: 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: GrantFiled: August 12, 1991Date of Patent: April 7, 1992Assignee: Board of Trustees Operating Michigan State UniversityInventors: Shridhar Iyer, Lawrence T. Drzal, Krishnamurthy Jayaraman