Patents by Inventor Uwe Kortshagen

Uwe Kortshagen 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).

  • SOLID COMPOUND RAPID REDUCTION SYSTEMS AND METHODS
    Publication number: 20230356299
    Abstract: Fully electrified microwave (MW) hydrogen (H2) plasma reduction systems and methods. With some embodiments, a plasma-flash ironmaking process is provided in which iron ore fines or particles are reduced.
    Type: Application
    Filed: May 9, 2023
    Publication date: November 9, 2023
    Applicant: Regents of the University of Minnesota
    Inventors: Peter Bruggeman, Uwe Kortshagen, Sachin Kumar, Zichang Xiong, Julian Held
  • Nanoparticles with grafted organic molecules
    Patent number: 8945673
    Abstract: An apparatus for producing grafted Group IV nanoparticles is provided and includes a source of Group IV nanoparticles. A chamber is configured to carry the nanoparticles in a gas phase and has an inlet and an exit. The inlet configured to couple to an organic molecule source which is configured to provide organic molecules to the chamber. A plasma source is arranged to generate a plasma. The plasma causes the organic molecules to break down and/or activate in the chamber and bond to the nanoparticles. A method of producing grafted Group IV nanoparticles is also provided and includes receiving Group IV nanoparticles in a gas phase, creating a plasma with the nanoparticles, and allowing the organic molecules to break down and/or become activated in the plasma and bond with the nanoparticles.
    Type: Grant
    Filed: December 20, 2011
    Date of Patent: February 3, 2015
    Assignees: Regents of the University of Minnesota, Innovalight, Inc.
    Inventors: Lorenzo Mangolini, Uwe Kortshagen, Rebecca J. Anthony, David Jurbergs, Xuegeng Li, Elena Rogojina
  • NANOPARTICLES WITH GRAFTED ORGANIC MOLECULES
    Publication number: 20120094033
    Abstract: An apparatus for producing grafted Group IV nanoparticles is provided and includes a source of Group IV nanoparticles. A chamber is configured to carry the nanoparticles in a gas phase and has an inlet and an exit. The inlet configured to couple to an organic molecule source which is configured to provide organic molecules to the chamber. A plasma source is arranged to generate a plasma. The plasma causes the organic molecules to break down and/or activate in the chamber and bond to the nanoparticles. A method of producing grafted Group IV nanoparticles is also provided and includes receiving Group IV nanoparticles in a gas phase, creating a plasma with the nanoparticles, and allowing the organic molecules to break down and/or become activated in the plasma and bond with the nanoparticles.
    Type: Application
    Filed: December 20, 2011
    Publication date: April 19, 2012
    Inventors: Lorenzo Mangolini, Uwe Kortshagen, Rebecca J. Anthony, David Jurbergs, Xuegeng Li, Elena Rogojina
  • Process and apparatus for forming nanoparticles using radiofrequency plasmas
    Patent number: 8016944
    Abstract: Methods and apparatus for producing nanoparticles, including single-crystal semiconductor nanoparticles, are provided. The methods include the step of generating a constricted radiofrequency plasma in the presence of a precursor gas containing precursor molecules to form nanoparticles. Single-crystal semiconductor nanoparticles, including photoluminescent silicon nanoparticles, having diameters of no more than 10 nm may be fabricated in accordance with the methods.
    Type: Grant
    Filed: November 3, 2008
    Date of Patent: September 13, 2011
    Assignee: Regents of the University of Minnesota
    Inventors: Uwe Kortshagen, Elijah J. Thimsen, Lorenzo Mangolini, Ameya Bapat, David Jurbergs
  • PROCESS AND APPARATUS FOR FORMING NANOPARTICLES USING RADIOFREQUENCY PLASMAS
    Publication number: 20090056628
    Abstract: Methods and apparatus for producing nanoparticles, including single-crystal semiconductor nanoparticles, are provided. The methods include the step of generating a constricted radiofrequency plasma in the presence of a precursor gas containing precursor molecules to form nanoparticles. Single-crystal semiconductor nanoparticles, including photoluminescent silicon nanoparticles, having diameters of no more than 10 nm may be fabricated in accordance with the methods.
    Type: Application
    Filed: November 3, 2008
    Publication date: March 5, 2009
    Inventors: Uwe Kortshagen, Elijah J. Thimsen, Lorenzo Mangolini, Ameya Bapat, David Jurbergs
  • Process and apparatus for forming nanoparticles using radiofrequency plasmas
    Patent number: 7446335
    Abstract: Methods and apparatus for producing nanoparticles, including single-crystal semiconductor nanoparticles, are provided. The methods include the step of generating a constricted radiofrequency plasma in the presence of a precursor gas containing precursor molecules to form nanoparticles. Single-crystal semiconductor nanoparticles, including photoluminescent silicon nanoparticles, having diameters of no more than 10 nm may be fabricated in accordance with the methods.
    Type: Grant
    Filed: June 17, 2005
    Date of Patent: November 4, 2008
    Assignee: Regents of the University of Minnesota
    Inventors: Uwe Kortshagen, Elijah J. Thimsen, Lorenzo Mangolini, Ameya Bapat, David Jurbergs
  • NANOPARTICLES WTIH GRAFTED ORGANIC MOLECULES
    Publication number: 20080220175
    Abstract: An apparatus for producing grafted Group IV nanoparticles is provided and includes a source of Group IV nanoparticles. A chamber is configured to carry the nanoparticles in a gas phase and has an inlet and an exit. The inlet configured to couple to an organic molecule source which is configured to provide organic molecules to the chamber. A plasma source is arranged to generate a plasma. The plasma causes the organic molecules to break down and/or activate in the chamber and bond to the nanoparticles. A method of producing grafted Group IV nanoparticles is also provided and includes receiving Group IV nanoparticles in a gas phase, creating a plasma with the nanoparticles, and allowing the organic molecules to break down and/or become activated in the plasma and bond with the nanoparticles.
    Type: Application
    Filed: January 22, 2008
    Publication date: September 11, 2008
    Inventors: Lorenzo Mangolini, Uwe Kortshagen, Rebecca J. Anthony, David Jurbergs, Xuegeng Li, Elena Rogojina
  • Process and apparatus for forming nanoparticles using radiofrequency plasmas
    Publication number: 20060051505
    Abstract: Methods and apparatus for producing nanoparticles, including single-crystal semiconductor nanoparticles, are provided. The methods include the step of generating a constricted radiofrequency plasma in the presence of a precursor gas containing precursor molecules to form nanoparticles. Single-crystal semiconductor nanoparticles, including photoluminescent silicon nanoparticles, having diameters of no more than 10 nm may be fabricated in accordance with the methods.
    Type: Application
    Filed: June 17, 2005
    Publication date: March 9, 2006
    Inventors: Uwe Kortshagen, Elijah Thimsen, Lorenzo Mangolini, Ameya Bapat, David Jurbergs