Patents by Inventor Daewoo Han

Daewoo Han 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).

  • Publication number: 20260318911
    Abstract: A lateral flow assay device for detecting the presence of, or quantifying an amount or concentration of, analyte in a sample. The device includes (1) a conjugate region including a binding reagent coupled to a signal-generating particle, wherein the binding reagent comprises a first antibody configured to bind lipopolysaccharide, and wherein the binding reagent is mobile relative to the device, and (2) an analytical membrane in fluid communication with the conjugate region, the analytical membrane comprising a test region and a control region. The test region includes an immobilized capture reagent configured to capture a complex including the analyte and the binding reagent, wherein the immobilized capture reagent is a second antibody. The control region includes a control component configured to capture the binding reagent coupled to the signal-generating particle.
    Type: Application
    Filed: April 9, 2026
    Publication date: October 15, 2026
    Inventors: Andrew J. Steckl, Daewoo Han, Sancai Xe
  • Publication number: 20240122918
    Abstract: A drug delivery device comprising: a first layer comprising a first coaxially electrospun nanofiber membrane; a second layer comprising a second coaxially electrospun nanofiber membrane; a first therapeutic agent integrated into the first coaxially electrospun nanofiber membrane; and a second therapeutic agent integrated into the second coaxially electrospun nanofiber membrane. The second therapeutic agent is different from the first therapeutic agent.
    Type: Application
    Filed: October 17, 2023
    Publication date: April 18, 2024
    Inventors: Andrew Steckl, Daewoo Han, Betty M. Tyler, Henry Brem, Safwan Alomari
  • Publication number: 20210123174
    Abstract: A composite comprising electrospun inorganic fibers and nanoparticles. The composite may carry a reagent, for example an oxidant. The composite may be formed by electro spinning a composition of a precursor material and nanoparticles to form a precursor composite followed by conversion of precursor fibers of the precursor composite to the inorganic fibers. The composite carrying a reagent may be used to absorb ethylene gas.
    Type: Application
    Filed: December 30, 2017
    Publication date: April 29, 2021
    Applicant: University of Cincinnati
    Inventors: Andrew Steckl, Daewoo Han, Ashkan Tirgar
  • Patent number: 9476149
    Abstract: Methods for electrospinning a hydrophobic coaxial fiber into a superhydrophobic coaxial fiber mat can include providing an electrospinning coaxial nozzle comprising a core outlet coaxial with a sheath outlet, ejecting an electrospinnable core solution from the core outlet of the electrospinning coaxial nozzle, ejecting a hydrophobic sheath solution from the sheath outlet of the electrospinning coaxial nozzle, wherein the hydrophobic sheath solution annularly surrounds the core solution, applying a voltage between the electrospinning coaxial nozzle and a collection plate, wherein the voltage induces a jet of the electrospinnable core solution annularly surrounded by the hydrophobic sheath solution to travel from the electrospinning coaxial nozzle to the collection plate to form the hydrophobic coaxial fiber comprising an electrospinnable polymer core coated with a hydrophobic sheath material, and wherein collection of the hydrophobic coaxial fiber on the collection plate yields the superhydrophobic coaxial fib
    Type: Grant
    Filed: August 26, 2013
    Date of Patent: October 25, 2016
    Assignee: University of Cincinnati
    Inventors: Andrew J. Steckl, Daewoo Han
  • Publication number: 20130344763
    Abstract: Methods for electrospinning a hydrophobic coaxial fiber into a superhydrophobic coaxial fiber mat can include providing an electrospinning coaxial nozzle comprising a core outlet coaxial with a sheath outlet, ejecting an electrospinnable core solution from the core outlet of the electrospinning coaxial nozzle, ejecting a hydrophobic sheath solution from the sheath outlet of the electrospinning coaxial nozzle, wherein the hydrophobic sheath solution annularly surrounds the core solution, applying a voltage between the electrospinning coaxial nozzle and a collection plate, wherein the voltage induces a jet of the electrospinnable core solution annularly surrounded by the hydrophobic sheath solution to travel from the electrospinning coaxial nozzle to the collection plate to form the hydrophobic coaxial fiber comprising an electrospinnable polymer core coated with a hydrophobic sheath material, and wherein collection of the hydrophobic coaxial fiber on the collection plate yields the superhydrophobic coaxial fib
    Type: Application
    Filed: August 26, 2013
    Publication date: December 26, 2013
    Applicant: University of Cincinnati
    Inventors: Andrew J. Steckl, Daewoo Han
  • Patent number: 8518320
    Abstract: Methods for electrospinning a hydrophobic coaxial fiber into a superhydrophobic coaxial fiber mat can include providing an electrospinning coaxial nozzle comprising a core outlet coaxial with a sheath outlet, ejecting an electrospinnable core solution from the core outlet of the electrospinning coaxial nozzle, ejecting a hydrophobic sheath solution from the sheath outlet of the electrospinning coaxial nozzle, wherein the hydrophobic sheath solution annularly surrounds the core solution, applying a voltage between the electrospinning coaxial nozzle and a collection plate, wherein the voltage induces a jet of the electrospinnable core solution annularly surrounded by the hydrophobic sheath solution to travel from the electrospinning coaxial nozzle to the collection plate to form the hydrophobic coaxial fiber comprising an electrospinnable polymer core coated with a hydrophobic sheath material, and wherein collection of the hydrophobic coaxial fiber on the collection plate yields the superhydrophobic coaxial fib
    Type: Grant
    Filed: May 21, 2010
    Date of Patent: August 27, 2013
    Assignee: University of Cincinnati
    Inventors: Andrew J. Steckl, Daewoo Han
  • Publication number: 20100297906
    Abstract: Methods for electrospinning a hydrophobic coaxial fiber into a superhydrophobic coaxial fiber mat can include providing an electrospinning coaxial nozzle comprising a core outlet coaxial with a sheath outlet, ejecting an electrospinnable core solution from the core outlet of the electrospinning coaxial nozzle, ejecting a hydrophobic sheath solution from the sheath outlet of the electrospinning coaxial nozzle, wherein the hydrophobic sheath solution annularly surrounds the core solution, applying a voltage between the electrospinning coaxial nozzle and a collection plate, wherein the voltage induces a jet of the electrospinnable core solution annularly surrounded by the hydrophobic sheath solution to travel from the electrospinning coaxial nozzle to the collection plate to form the hydrophobic coaxial fiber comprising an electrospinnable polymer core coated with a hydrophobic sheath material, and wherein collection of the hydrophobic coaxial fiber on the collection plate yields the superhydrophobic coaxial fib
    Type: Application
    Filed: May 21, 2010
    Publication date: November 25, 2010
    Applicant: UNIVERSITY OF CINCINNATI
    Inventors: Andrew J. Steckl, Daewoo Han