Patents by Inventor Ranganathan Kumar

Ranganathan Kumar 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: 11534833
    Abstract: A laser-assisted microfluidics manufacturing process has been developed for the fabrication of additively manufactured structures. Roll-to-roll manufacturing is enhanced by the use of a laser-assisted electrospray printhead positioned above the flexible substrate. The laser electrospray printhead sprays microdroplets containing nanoparticles onto the substrate to form both thin-film and structural layers. As the substrate moves, the nanoparticles are sintered using a laser beam directed by the laser electrospray printhead onto the substrate.
    Type: Grant
    Filed: July 2, 2021
    Date of Patent: December 27, 2022
    Assignee: University of Central Florida Research Foundation, Inc.
    Inventors: Aravinda Kar, Ranganathan Kumar, Eduardo Castillo Orozco
  • Publication number: 20210331249
    Abstract: A laser-assisted microfluidics manufacturing process has been developed for the fabrication of additively manufactured structures. Roll-to-roll manufacturing is enhanced by the use of a laser-assisted electrospray printhead positioned above the flexible substrate. The laser electrospray printhead sprays microdroplets containing nanoparticles onto the substrate to form both thin-film and structural layers. As the substrate moves, the nanoparticles are sintered using a laser beam directed by the laser electrospray printhead onto the substrate.
    Type: Application
    Filed: July 2, 2021
    Publication date: October 28, 2021
    Inventors: Aravinda Kar, Ranganathan Kumar, Eduardo Castillo Orozco
  • Patent number: 11084100
    Abstract: A laser-assisted microfluidics manufacturing process has been developed for the fabrication of additively manufactured structures. Roll-to-roll manufacturing is enhanced by the use of a laser-assisted electrospray printhead positioned above the flexible substrate. The laser electrospray printhead sprays microdroplets containing nanoparticles onto the substrate to form both thin-film and structural layers. As the substrate moves, the nanoparticles are sintered using a laser beam directed by the laser electrospray printhead onto the substrate.
    Type: Grant
    Filed: August 23, 2018
    Date of Patent: August 10, 2021
    Assignee: University of Central Florida Research Foundation, Inc.
    Inventors: Aravinda Kar, Ranganathan Kumar, Eduardo Castillo Orozco
  • Patent number: 10732118
    Abstract: A detector is for identifying chemicals in a sample. The detector may include a photodetector comprising SiC semiconductor material and configured to have an acceptor energy band of range Ea??Ea to Ea+?Ea. The SiC semiconductor material may be doped with a dopant to exceed a threshold dopant concentration level. The photodetector may be configured to receive fluorescence information from the sample.
    Type: Grant
    Filed: October 9, 2019
    Date of Patent: August 4, 2020
    Assignees: UNIVERSITY OF CENTRAL FLORIDA RESEARCH FOUNDATION, INC., THE U.S.A. AS REPRESENTED BY THE SECRETARY OF THE NAVY
    Inventors: Chandraika Sugrim, Ranganathan Kumar, Aravinda Kar, Robert Burkhart
  • Publication number: 20200110034
    Abstract: A detector is for identifying chemicals in a sample. The detector may include a photodetector comprising SiC semiconductor material and configured to have an acceptor energy band of range Ea??Ea to Ea+?Ea. The SiC semiconductor material may be doped with a dopant to exceed a threshold dopant concentration level. The photodetector may be configured to receive fluorescence information from the sample.
    Type: Application
    Filed: October 9, 2019
    Publication date: April 9, 2020
    Inventors: Chandraika Sugrim, Ranganathan Kumar, Aravinda Kar, Robert Burkhart
  • Publication number: 20190061000
    Abstract: A laser-assisted microfluidics manufacturing process has been developed for the fabrication of additively manufactured structures. Roll-to-roll manufacturing is enhanced by the use of a laser-assisted electrospray printhead positioned above the flexible substrate. The laser electrospray printhead sprays microdroplets containing nanoparticles onto the substrate to form both thin-film and structural layers. As the substrate moves, the nanoparticles are sintered using a laser beam directed by the laser electrospray printhead onto the substrate.
    Type: Application
    Filed: August 23, 2018
    Publication date: February 28, 2019
    Inventors: Aravinda Kar, Ranganathan Kumar, Eduardo Castillo Orozco
  • Patent number: 9458296
    Abstract: In an embodiment, a method of processing a polymer comprises: mixing polymer and solid carbon dioxide; introducing the polymer and solid carbon dioxide mixture to a hopper of a vented extruder; plasticizing the mixture to form a polymer melt with dissolved carbon dioxide; venting carbon dioxide as a gas before the die exit; and extruding the polymer melt through a die. In an embodiment, a method of making an article comprises: introducing a polymer powder to an extruder; introducing solid carbon dioxide powder to the extruder at the hopper; plasticizing and extruding the polymer and solid carbon dioxide mixture; venting the solid carbon dioxide before the die exit; extruding the polymer melt through a die to form pellets; and injection molding the polymer pellets without solid carbon dioxide to form molded articles.
    Type: Grant
    Filed: September 4, 2012
    Date of Patent: October 4, 2016
    Assignee: SAUDI BASIC INDUSTRIES CORPORATION
    Inventors: Sumanda Bandyopadhyay, Sadasivam Gopalakrishnan, Sathish Ranganathan Kumar, Kaushik Banik, Zahir Bashir
  • Patent number: 9259693
    Abstract: A fluid mixing method using a micromixing apparatus which includes a mixing microchannel having a channel length and a continuously variable channel width defined by a first sidewall surface and an opposing second sidewall surface. The channel width varies from a minimum channel width h to a maximum channel width H in a ratio of H:h?1.1:1.0. A first inlet injects a first fluid and a second inlet a second fluid into the mixing microchannel which both flow in a flow direction in the mixing microchannel along the channel length. The first sidewall surface includes first curved surface portions and the second sidewall surface includes second curved surface portions. The first and second curved surface portions are non-overlapping to provide the variable channel width. The flow velocity profile is passively varied and exclusively controlled by the continuously variable channel width.
    Type: Grant
    Filed: March 29, 2013
    Date of Patent: February 16, 2016
    Assignee: University of Central Florida Research Foundation, Inc.
    Inventors: Ehsan Yakhshi Tafti, Hyoung Jin Cho, Ranganathan Kumar
  • Publication number: 20140061966
    Abstract: In an embodiment, a method of processing a polymer comprises: mixing polymer and solid carbon dioxide; introducing the polymer and solid carbon dioxide mixture to a hopper of a vented extruder; plasticizing the mixture to form a polymer melt with dissolved carbon dioxide; venting carbon dioxide as a gas before the die exit; and extruding the polymer melt through a die. In an embodiment, a method of making an article comprises: introducing a polymer powder to an extruder; introducing solid carbon dioxide powder to the extruder at the hopper; plasticizing and extruding the polymer and solid carbon dioxide mixture; venting the solid carbon dioxide before the die exit; extruding the polymer melt through a die to form pellets; and injection molding the polymer pellets without solid carbon dioxide to form molded articles.
    Type: Application
    Filed: September 4, 2012
    Publication date: March 6, 2014
    Applicant: SAUDI BASIC INDUSTRIES CORPORATION
    Inventors: Sumanda Bandyopadhyay, Sadasivam Gopalakrishnan, Sathish Ranganathan Kumar, Kaushik Banik, Zahir Bashir
  • Patent number: 8430558
    Abstract: A micromixing apparatus includes a mixing microchannel formed in a top surface of a substrate having a channel length and a variable channel width defined by a first sidewall surface and an opposing second sidewall surface. The channel width varies from a minimum channel width h to a maximum channel width H in a ratio of H:h?1.1:1.0. A first inlet is for injecting a first fluid into the mixing microchannel and a second inlet for injecting a second fluid into the mixing microchannel. The first and second fluid flow in a flow direction in the mixing microchannel along the channel length. The first sidewall surface includes first curved surface portions and the second sidewall surface includes a second curved surface portions. The plurality of first curved surface portions and plurality of second curved surface portions are non-overlapping to provide the variable channel width.
    Type: Grant
    Filed: September 3, 2009
    Date of Patent: April 30, 2013
    Assignee: University of Central Florida Research Foundation, Inc.
    Inventors: Ehsan Yakhshi Tafti, Hyoung Jin Cho, Ranganathan Kumar
  • Publication number: 20050048532
    Abstract: The present invention relates to an alpha-arteether resistance domain (ADR) of Sequence ID No.1 and a method of identifying ADR in alpha-arteether resistant pathogens and lastly, it relates to set three pairs of primers of sequence ID Nos. 3 to 8.
    Type: Application
    Filed: March 26, 2004
    Publication date: March 3, 2005
    Inventors: Suman Preet Khanuja, Suchi Srivastava, Ajit Shasany, Tiruppadiripuliyur Ranganathan Kumar, Mahendra Darokar, Preeti Chand, Sushil Kumar