Patents by Inventor Dong Keon KWEON

Dong Keon KWEON 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: 11617813
    Abstract: Provided is a method of manufacturing a hyaluronate-coated high-functional suture and a high-functional suture manufactured thereby, and more particularly to a method of manufacturing a high-functional suture and a high-functional suture manufactured thereby, wherein a suture for internal and external surgery derived from a conventional chemical synthetic material is coated with a hyaluronate as a biocompatible material, thus improving biocompatibility, functionality and ease of use. Upon application of the hyaluronate-coated suture of the invention to the human body, the hyaluronate applied on the surface of the suture is rapidly swollen by body fluids and can thus function as a lubricant, thus being convenient to use by a surgical doctor and reducing the pain of a patient and maximizing the functions of skin filling or skin regeneration in the body.
    Type: Grant
    Filed: February 3, 2020
    Date of Patent: April 4, 2023
    Inventors: Dong Keon Kweon, Seung Hyeon Park
  • Publication number: 20220160932
    Abstract: A high-strength hyaluronate fiber, suitable for use in a surgical suture, a lifting thread, a tissue-engineering scaffold, etc., and a manufacturing method thereof are proposed. The method includes (a) controlling a water content of a hyaluronate having a weight average molecular weight of 100-3,000 kDa to 50-95 wt % to prepare a hyaluronate paste, (b) melting the hyaluronate paste having a controlled water content at a temperature ranging from room temperature to 100° C., and then extruding the hyaluronate paste through a nozzle, and (c) drying the extruded spinning fluid to form a fiber. The hyaluronate fiber has the water content of 5-25 wt %, the tensile strength of 3 to 15 kg/mm2, and a smooth surface with small cracks, so that the hyaluronate fiber can be used for a surgical suture, a lifting thread, a filler for cosmetic surgery, a tissue-engineering scaffold, etc.
    Type: Application
    Filed: November 27, 2020
    Publication date: May 26, 2022
    Inventors: Dong Keon KWEON, Sin Hwan KWON, Jong Soo KIM, Da Wei LI, Myoung Han LEE, Hyun Ho LEE, Young Chan JEON, Joo Yeon HONG
  • Patent number: 11298855
    Abstract: The present invention relates to a method of manufacturing a hyaluronate film and a hyaluronate film manufactured thereby, and more particularly to a method of manufacturing a hyaluronate film through a solvent-casting process or using an automatic film applicator that facilitates mass production and to a hyaluronate film manufactured thereby, which is useful as a mask pack for cosmetics, a patch for medicaments and medical devices, a film-type adhesion inhibitor, etc. Unlike conventional liquid products, the hyaluronate film according to the present invention has a dry surface and thus entails no concern about microbial contamination, is easy to produce/manage/distribute/use, and has superior mechanical properties, whereby it can be utilized for various applications such as packs, patches, artificial skin and the like for cosmetics, medicaments, and medical devices.
    Type: Grant
    Filed: March 7, 2018
    Date of Patent: April 12, 2022
    Assignee: JINWOO BIO CO., LTD.
    Inventors: Dong Keon Kweon, Joo Yeon Hong, Ji Hyun Bang, Seung Taik Lim, So Mang Choi, Seul Ki Kim, Man Ha, Young Mo Lee
  • Patent number: 10994048
    Abstract: Provided is a hyaluronate fiber, and more particularly to a hyaluronate fiber, suitable for use in a surgical suture, a filler for cosmetic surgery, a lifting thread, a tissue-engineering scaffold, etc., and a method of manufacturing the same. Further, a method of manufacturing the hyaluronate fiber through melt spinning is provided, which includes (a) controlling the water content of a hyaluronate having a weight average molecular weight of 500˜3,000 kDa to 5˜20%, (b) producing a hyaluronate fiber by placing the hyaluronate having a controlled water content in a melt-spinning apparatus and performing heating to 150˜200° C. and then high-pressure spinning, and (c) hardening the surface of the hyaluronate fiber by immersing the hyaluronate fiber in an ethanol aqueous solution.
    Type: Grant
    Filed: September 1, 2016
    Date of Patent: May 4, 2021
    Assignee: JINWOO BIO CO., LTD.
    Inventors: Dong Keon Kweon, Seung Hyeon Park
  • Patent number: 10695459
    Abstract: Provided are a method of manufacturing a hyaluronate-coated high-functional suture and a high-functional suture manufactured thereby, and more particularly to a method of manufacturing a high-functional suture and a high-functional suture manufactured thereby, wherein a suture for internal and external surgery derived from a conventional chemical synthetic material is coated with a hyaluronate as a biocompatible material, thus improving biocompatibility, functionality and ease of use.
    Type: Grant
    Filed: September 1, 2016
    Date of Patent: June 30, 2020
    Assignee: JINWOO BIO CO., LTD.
    Inventors: Dong Keon Kweon, Seung Hyeon Park
  • Publication number: 20200171199
    Abstract: Provided is a method of manufacturing a hyaluronate-coated high-functional suture and a high-functional suture manufactured thereby, and more particularly to a method of manufacturing a high-functional suture and a high-functional suture manufactured thereby, wherein a suture for internal and external surgery derived from a conventional chemical synthetic material is coated with a hyaluronate as a biocompatible material, thus improving biocompatibility, functionality and ease of use. Upon application of the hyaluronate-coated suture of the invention to the human body, the hyaluronate applied on the surface of the suture is rapidly swollen by body fluids and can thus function as a lubricant, thus being convenient to use by a surgical doctor and reducing the pain of a patient and maximizing the functions of skin filling or skin regeneration in the body.
    Type: Application
    Filed: February 3, 2020
    Publication date: June 4, 2020
    Inventors: Dong Keon KWEON, Seung Hyeon PARK
  • Publication number: 20200016795
    Abstract: The present invention relates to a method of manufacturing a hyaluronate film and a hyaluronate film manufactured thereby, and more particularly to a method of manufacturing a hyaluronate film through a solvent-casting process or using an automatic film applicator that facilitates mass production and to a hyaluronate film manufactured thereby, which is useful as a mask pack for cosmetics, a patch for medicaments and medical devices, a film-type adhesion inhibitor, etc. Unlike conventional liquid products, the hyaluronate film according to the present invention has a dry surface and thus entails no concern about microbial contamination, is easy to produce/manage/distribute/use, and has superior mechanical properties, whereby it can be utilized for various applications such as packs, patches, artificial skin and the like for cosmetics, medicaments, and medical devices.
    Type: Application
    Filed: March 7, 2018
    Publication date: January 16, 2020
    Inventors: Dong Keon KWEON, Ju Yeon HONG, Ji Hyun BANG, Seung Taik LIM, So Mang CHOI, Seul Ki KIM, Man HA, Young Mo LEE
  • Publication number: 20190015544
    Abstract: Provided are a method of manufacturing a hyaluronate-coated high-functional suture and a high-functional suture manufactured thereby, and more particularly to a method of manufacturing a high-functional suture and a high-functional suture manufactured thereby, wherein a suture for internal and external surgery derived from a conventional chemical synthetic material is coated with a hyaluronate as a biocompatible material, thus improving biocompatibility, functionality and ease of use.
    Type: Application
    Filed: September 1, 2016
    Publication date: January 17, 2019
    Inventors: Dong Keon KWEON, Seung Hyeon PARK
  • Publication number: 20180243471
    Abstract: Provided is a hyaluronate fiber, and more particularly to a hyaluronate fiber, suitable for use in a surgical suture, a filler for cosmetic surgery, a lifting thread, a tissue-engineering scaffold, etc., and a method of manufacturing the same. Further, a method of manufacturing the hyaluronate fiber through melt spinning is provided, which includes (a) controlling the water content of a hyaluronate having a weight average molecular weight of 500˜3,000 kDa to 5˜20%, (b) producing a hyaluronate fiber by placing the hyaluronate having a controlled water content in a melt-spinning apparatus and performing heating to 150˜200° C. and then high-pressure spinning, and (c) hardening the surface of the hyaluronate fiber by immersing the hyaluronate fiber in an ethanol aqueous solution.
    Type: Application
    Filed: September 1, 2016
    Publication date: August 30, 2018
    Inventors: Dong Keon KWEON, Seung Hyeon PARK