Patents by Inventor Doojoon Jang

Doojoon Jang 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: 11717791
    Abstract: Two-dimensional material based filters, their method of manufacture, and their use are disclosed. In one embodiment, a membrane may include an active layer including a plurality of defects and a deposited material associated with the plurality of defects may reduce flow therethrough. Additionally, a majority of the active layer may be free from the material. In another embodiment, a membrane may include a porous substrate and an atomic layer deposited material disposed on a surface of the porous substrate. The atomic layer deposited material may be less hydrophilic than the porous substrate and an atomically thin active layer may be disposed on the atomic layer deposited material.
    Type: Grant
    Filed: April 27, 2020
    Date of Patent: August 8, 2023
    Assignees: Massachusetts Institute of Technology, King Fahd University of Petroleum & Minerals
    Inventors: Rohit N. Karnik, Suman Bose, Michael S. H. Boutilier, Nicolas G. Hadjiconstantinou, Tarun Kumar Jain, Sean C. O'Hern, Tahar Laoui, Muataz A. Atieh, Doojoon Jang
  • Publication number: 20200316528
    Abstract: Two-dimensional material based filters, their method of manufacture, and their use are disclosed. In one embodiment, a membrane may include an active layer including a plurality of defects and a deposited material associated with the plurality of defects may reduce flow therethrough. Additionally, a majority of the active layer may be free from the material. In another embodiment, a membrane may include a porous substrate and an atomic layer deposited material disposed on a surface of the porous substrate. The atomic layer deposited material may be less hydrophilic than the porous substrate and an atomically thin active layer may be disposed on the atomic layer deposited material.
    Type: Application
    Filed: April 27, 2020
    Publication date: October 8, 2020
    Applicants: Massachusetts Institute of Technology, King Fahd University of Petroleum & Minerals
    Inventors: Rohit N. Karnik, Suman Bose, Michael S.H. Boutilier, Nicolas G. Hadjiconstantinou, Tarun Kumar Jain, Sean C. O'Hern, Tahar Laoui, Muataz A. Atieh, Doojoon Jang
  • Patent number: 10668435
    Abstract: Two-dimensional material based filters, their method of manufacture, and their use are disclosed. In one embodiment, a membrane may include an active layer including a plurality of defects and a deposited material associated with the plurality of defects may reduce flow therethrough. Additionally, a majority of the active layer may be free from the material. In another embodiment, a membrane may include a porous substrate and an atomic layer deposited material disposed on a surface of the porous substrate. The atomic layer deposited material may be less hydrophilic than the porous substrate and an atomically thin active layer may be disposed on the atomic layer deposited material.
    Type: Grant
    Filed: January 23, 2018
    Date of Patent: June 2, 2020
    Assignees: Massachusetts Institute of Technology, King Fahd University of Petroleum & Minerals
    Inventors: Rohit N. Karnik, Suman Bose, Michael S. H. Boutilier, Nicolas G. Hadjiconstantinou, Tarun Kumar Jain, Sean C. O'Hern, Tahar Laoui, Muataz A. Atieh, Doojoon Jang
  • Publication number: 20200001245
    Abstract: Disclosed embodiments are related to mitigating leaks in membranes and/or improving the selectivity of membranes.
    Type: Application
    Filed: June 28, 2019
    Publication date: January 2, 2020
    Applicant: Massachusetts Institute of Technology
    Inventors: Rohit N. Karnik, Doojoon Jang
  • Publication number: 20190070566
    Abstract: According to some aspects, a semi-permeable membrane is provided for performing separation processes as well as its method of manufacture. In some instances, a membrane may include a porous substrate, and an active layer disposed upon the substrate. The active layer may include at least one atomically thin layer having a plurality of open pores that allow transport of some species through the membrane while restricting transport of other species through the membrane. The open pores may have a mean pore size between 0.5 nm and 10 nm and a number density between 109 cm?2 and 1014 cm?2.
    Type: Application
    Filed: November 3, 2017
    Publication date: March 7, 2019
    Applicant: Massachusetts Institute of Technology
    Inventors: Piran Kidambi, Rohit N. Karmik, Doojoon Jang, Michael S.H. Boutilier, Sui Zhang
  • Publication number: 20180185791
    Abstract: Two-dimensional material based filters, their method of manufacture, and their use are disclosed. In one embodiment, a membrane may include an active layer including a plurality of defects and a deposited material associated with the plurality of defects may reduce flow therethrough. Additionally, a majority of the active layer may be free from the material. In another embodiment, a membrane may include a porous substrate and an atomic layer deposited material disposed on a surface of the porous substrate. The atomic layer deposited material may be less hydrophilic than the porous substrate and an atomically thin active layer may be disposed on the atomic layer deposited material.
    Type: Application
    Filed: January 23, 2018
    Publication date: July 5, 2018
    Applicants: Massachusetts Institute of Technology, King Fahd University of Petroleum & Minerals
    Inventors: Rohit N. Karnik, Suman Bose, Michael S.H. Boutilier, Nicolas G. Hadjiconstantinou, Tarun Kumar Jain, Sean C. O'Hern, Tahar Laoui, Muataz A. Atieh, Doojoon Jang
  • Patent number: 9901879
    Abstract: Two-dimensional material based filters, their method of manufacture, and their use are disclosed. In one embodiment, a membrane may include an active layer including a plurality of defects and a deposited material associated with the plurality of defects may reduce flow therethrough. Additionally, a majority of the active layer may be free from the material. In another embodiment, a membrane may include a porous substrate and an atomic layer deposited material disposed on a surface of the porous substrate. The atomic layer deposited material may be less hydrophilic than the porous substrate and an atomically thin active layer may be disposed on the atomic layer deposited material.
    Type: Grant
    Filed: October 31, 2014
    Date of Patent: February 27, 2018
    Assignees: Massachusetts Institute of Technology, King Fahd University of Petroleum & Minerals
    Inventors: Rohit N. Karnik, Suman Bose, Michael S. H. Boutilier, Nicolas G. Hadjiconstantinou, Tarun Kumar Jain, Sean C. O'Hern, Tahar Laoui, Muataz A. Atieh, Doojoon Jang
  • Publication number: 20150122727
    Abstract: Two-dimensional material based filters, their method of manufacture, and their use are disclosed. In one embodiment, a membrane may include an active layer including a plurality of defects and a deposited material associated with the plurality of defects may reduce flow therethrough. Additionally, a majority of the active layer may be free from the material. In another embodiment, a membrane may include a porous substrate and an atomic layer deposited material disposed on a surface of the porous substrate. The atomic layer deposited material may be less hydrophilic than the porous substrate and an atomically thin active layer may be disposed on the atomic layer deposited material.
    Type: Application
    Filed: October 31, 2014
    Publication date: May 7, 2015
    Applicants: Massachusetts Institute of Technology, King Fahd University of Petroleum & Minerals
    Inventors: ROHIT N. KARNIK, Suman Bose, Michael S.H. Boutilier, Nicolas G. Hadjiconstantinou, Tarun Kumar Jain, Sean C. O'Hern, Tahar Laoui, Muataz A. Atieh, Doojoon Jang