Patents by Inventor Hyeonsu WOO

Hyeonsu WOO 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).

  • Transdermal drug delivery patch and manufacturing method thereof
    Patent number: 12121618
    Abstract: A transdermal drug delivery patch includes a flexible base layer, and a plurality of microneedles disposed at one surface of the base layer and including a biodegradable polymer and a drug. Each of a plurality of microneedles is formed as a star-shaped pyramid including a plurality of protrusions extending in a radial direction, and a concave shape is formed between two protrusions adjacent along a circumferential direction among a plurality of protrusions.
    Type: Grant
    Filed: May 18, 2018
    Date of Patent: October 22, 2024
    Assignees: Postech Academy-Industry Foundation, Shilla Industrial Co., Ltd.
    Inventors: Geunbae Lim, Jungho Lee, Byoungsun Choi, Hyeonsu Woo
  • TRANSDERMAL DRUG DELIVERY PATCH AND MANUFACTURING METHOD THEREOF
    Publication number: 20240325702
    Abstract: A transdermal drug delivery patch according to an exemplary embodiment of the present invention includes: a flexible base layer; and a plurality of microneedle disposed at one surface of the base layer. Each of the plurality of microneedles includes a biodegradable polymer and a drug and has an empty space inside. Each of the plurality of microneedles is formed as a star-shaped pyramid including a plurality of protrusions extending in a radial direction, and a part between two protrusions adjacent along the circumferential direction among the plurality of protrusions is concave.
    Type: Application
    Filed: June 11, 2024
    Publication date: October 3, 2024
    Inventors: Geunbae LIM, Jungho LEE, Byoungsun CHOI, Hyeonsu WOO
  • Transdermal drug delivery patch and manufacturing method thereof
    Patent number: 12036378
    Abstract: A transdermal drug delivery patch according to an exemplary embodiment of the present invention includes: a flexible base layer; and a plurality of microneedle disposed at one surface of the base layer. Each of the plurality of microneedles includes a biodegradable polymer and a drug and has an empty space inside. Each of the plurality of microneedles is formed as a star-shaped pyramid including a plurality of protrusions extending in a radial direction, and a part between two protrusions adjacent along the circumferential direction among the plurality of protrusions is concave.
    Type: Grant
    Filed: May 18, 2018
    Date of Patent: July 16, 2024
    Assignees: POSTECH ACADEMY-INDUSTRY FOUNDATION, SHILLA INDUSTRIAL CO., LTD.
    Inventors: Geunbae Lim, Jungho Lee, Byoungsun Choi, Hyeonsu Woo
  • Method for fabricating oleophilic-hydrophobic nanofiber membrane and separation of water-in-oil emulsion using same method and waste heat
    Publication number: 20230053375
    Abstract: The present invention relates to a lipophilic and hydrophobic nanofiber membrane and a method of preparing the same. The lipophilic and hydrophobic nanofiber membrane according to an exemplary embodiment may be compressed at a pressure of 10 kPa to 100 kPa and may have an average thickness of 10 ?m to 1,500 ?m.
    Type: Application
    Filed: August 23, 2022
    Publication date: February 23, 2023
    Inventors: Geunbae LIM, Hyeonsu WOO
  • TRANSTERMAL DRUG DELIVERY PATCH AND MANUFACTURING METHOD THEREOF
    Publication number: 20210244681
    Abstract: A transdermal drug delivery patch includes a flexible base layer, and a plurality of microneedles disposed at one surface of the base layer and including a biodegradable polymer and a drug. Each of a plurality of microneedles is formed as a star-shaped pyramid including a plurality of protrusions extending in a radial direction, and a concave shape is formed between two protrusions adjacent along a circumferential direction among a plurality of protrusions.
    Type: Application
    Filed: May 18, 2018
    Publication date: August 12, 2021
    Inventors: Geunbae LIM, Jungho LEE, Byoungsun CHOI, Hyeonsu WOO
  • TRANSDERMAL DRUG DELIVERY PATCH AND MANUFACTURING METHOD THEREOF
    Publication number: 20210228854
    Abstract: A transdermal drug delivery patch according to an exemplary embodiment of the present invention includes: a flexible base layer; and a plurality of microneedle disposed at one surface of the base layer. Each of the plurality of microneedles includes a biodegradable polymer and a drug and has an empty space inside. Each of the plurality of microneedles is formed as a star-shaped pyramid including a plurality of protrusions extending in a radial direction, and a part between two protrusions adjacent along the circumferential direction among the plurality of protrusions is concave.
    Type: Application
    Filed: May 18, 2018
    Publication date: July 29, 2021
    Inventors: Geunbae LIM, Jungho LEE, Byoungsun CHOI, Hyeonsu WOO