Patents by Inventor Ggoch Ddeul Han

Ggoch Ddeul 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: 20230053197
    Abstract: The present invention relates to a compound of Formula (I): whereinR1, R2, m, n, p, Q, X, Y, W, and “A” are as described herein. The present invention also relates to a process for preparation of a compound of Formula (I). Also disclosed is a thermal-storage device comprising one or more compounds of Formula (I) and a method of storing energy.
    Type: Application
    Filed: February 3, 2021
    Publication date: February 16, 2023
    Inventors: Ggoch Ddeul HAN, Mihael A. GERKMAN, Rosina GIBSON, Matthew J. FUCHTER, Jeffrey C. GROSSMAN
  • Patent number: 10974208
    Abstract: Membranes comprising graphene oxide sheets and associated filter media and methods are provided. In some embodiments, a membrane may comprise graphene oxide sheets that have undergone one or more chemical treatments. The chemical treatment(s) may impart beneficial properties to the membrane, such as a relatively small d-spacing, compatibility with a broad range of environments, physical stability, and charge neutrality. For example, the graphene oxide sheets may undergo one or more chemical treatments that form chemical linkages between at least a portion of the graphene oxide sheets in the membrane. Such chemical linkages may impart a small d-spacing, broad compatibility, and/or allow relatively thick membranes to be formed. In certain embodiments, the graphene oxide sheets may undergo one or more chemical treatment that imparts relative charge neutrality to the membrane by altering the ionizability of certain functional groups.
    Type: Grant
    Filed: May 11, 2017
    Date of Patent: April 13, 2021
    Assignee: Massachusetts Institute of Technology
    Inventors: Shreya H. Dave, Brent Keller, Ggoch Ddeul Han, Jeffrey C. Grossman
  • Patent number: 10672988
    Abstract: Embodiments described herein provide functionalized carbon nanostructures for use in various devices, including photovoltaic devices (e.g., solar cells). In some cases, the carbon nanostructures are fullerenes substituted with one or more isobenzofulvene species and/or indane species. Devices including such materials may exhibit increased efficiency, increased open circuit potential, high electron/hole mobility, and/or low electrical resistance.
    Type: Grant
    Filed: April 17, 2015
    Date of Patent: June 2, 2020
    Assignees: Massachusetts Institute of Technology, Eni S.p.A.
    Inventors: Timothy M. Swager, Vladimir Bulovic, Ggoch Ddeul Han, Andrea Maurano, Riccardo Po, Andrea Pellegrino
  • Publication number: 20170341034
    Abstract: Membranes comprising graphene oxide sheets and associated filter media and methods are provided. In some embodiments, a membrane may comprise graphene oxide sheets that have undergone one or more chemical treatments. The chemical treatment(s) may impart beneficial properties to the membrane, such as a relatively small d-spacing, compatibility with a broad range of environments, physical stability, and charge neutrality. For example, the graphene oxide sheets may undergo one or more chemical treatments that form chemical linkages between at least a portion of the graphene oxide sheets in the membrane. Such chemical linkages may impart a small d-spacing, broad compatibility, and/or allow relatively thick membranes to be formed. In certain embodiments, the graphene oxide sheets may undergo one or more chemical treatment that imparts relative charge neutrality to the membrane by altering the ionizability of certain functional groups.
    Type: Application
    Filed: May 11, 2017
    Publication date: November 30, 2017
    Applicant: Massachusetts Institute of Technology
    Inventors: Shreya H. Dave, Brent Keller, Ggoch Ddeul Han, Jeffrey C. Grossman
  • Patent number: 9755150
    Abstract: Embodiments described herein provide functionalized carbon nanostructures for use in various devices, including photovoltaic devices (e.g., solar cells). In some embodiments, carbon nanostructures substituted with at least one cyclobutyl and/or cyclobutenyl group are provided. Devices including such materials may exhibit increased efficiency, increased open circuit potential, high electron/hole mobility, and/or low electrical resistance.
    Type: Grant
    Filed: March 5, 2013
    Date of Patent: September 5, 2017
    Assignee: Massachussets Institute of Technology
    Inventors: Timothy M. Swager, Vladimir Bulovic, Ggoch Ddeul Han, Trisha L. Andrew
  • Publication number: 20170186960
    Abstract: Embodiments described herein provide functionalized carbon nanostructures for use in various devices, including photovoltaic devices (e.g., solar cells). In some cases, the carbon nanostructures are fullerenes substituted with one or more isobenzofulvene species and/or indane species. Devices including such materials may exhibit increased efficiency, increased open circuit potential, high electron/hole mobility, and/or low electrical resistance.
    Type: Application
    Filed: April 17, 2015
    Publication date: June 29, 2017
    Applicants: Massachusetts Intitute of Technology, Eni S.p.A.
    Inventors: Timothy M. Swager, Vladimir Bulovic, Ggoch Ddeul Han, Andrea Maurano, Ricardo Po, Andrea Pellegrino
  • Publication number: 20140102539
    Abstract: Embodiments described herein provide functionalized carbon nanostructures for use in various devices, including photovoltaic devices (e.g., solar cells). In some embodiments, carbon nanostructures substituted with at least one cyclobutyl and/or cyclobutenyl group are provided. Devices including such materials may exhibit increased efficiency, increased open circuit potential, high electron/hole mobility, and/or low electrical resistance.
    Type: Application
    Filed: March 5, 2013
    Publication date: April 17, 2014
    Applicant: Massachusetts Institute of Technology
    Inventors: Timothy M. Swager, Vladimir Bulovic, Ggoch Ddeul Han, Trisha L. Andrew