Patents by Inventor Young-Joo Koh

Young-Joo Koh 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).

  • Sealant syringe assembly
    Patent number: 11638782
    Abstract: A sealant syringe assembly includes a first syringe including a plurality of chambers and discharging a first solution which is a mixture of a buffer solution and compound powder; a reaction solution syringe including at least one chamber and discharging a reaction solution capable of reacting with the first solution; and a connector for connecting the first syringe and the reaction solution syringe to mix and discharge the first solution and the reaction solution. The first syringe includes three packing members provided inside the first syringe; a passage provided in the inner circumferential surface of the first syringe; and a plunger for providing a pressure to one of the packing members.
    Type: Grant
    Filed: August 7, 2018
    Date of Patent: May 2, 2023
    Assignee: SAMYANG HOLDINGS CORPORATION
    Inventors: Young Joo Koh, Hyung Hwan Kim, Jung Ha Park
  • Porous microparticles of biodegradable polymer, and polymer filler comprising same
    Patent number: 11406733
    Abstract: The present invention relates to porous microparticles of a biodegradable polymer, and a polymer filler comprising the same.
    Type: Grant
    Filed: August 10, 2017
    Date of Patent: August 9, 2022
    Assignee: SAMYANG HOLDINGS CORPORATION
    Inventors: Jin Su Kim, Wang Soo Shin, Na Jeong Park, Young Joo Koh, Jun Bae Kim
  • SEALANT SYRINGE ASSEMBLY
    Publication number: 20200238009
    Abstract: The present invention relates to a sealant syringe assembly.
    Type: Application
    Filed: August 7, 2018
    Publication date: July 30, 2020
    Applicant: SAMYANG BIOPHARMACEUTICALS CORPORATION
    Inventors: Young Joo KOH, Hyung Hwan KIM, Jung Ha PARK
  • POROUS MICROPARTICLES OF BIODEGRADABLE POLYMER, AND POLYMER FILLER COMPRISING SAME
    Publication number: 20200069839
    Abstract: The present invention relates to porous microparticles of a biodegradable polymer, and a polymer filler comprising the same.
    Type: Application
    Filed: August 10, 2017
    Publication date: March 5, 2020
    Applicant: SAMYANG BIOPHARMACEUTICALS CORPORATION
    Inventors: Jin Su KIM, Wang Soo SHIN, Na Jeong PARK, Young Joo KOH, Jun Bae KIM
  • METHOD FOR PURIFYING BIODEGRADABLE POLYMERS
    Publication number: 20190270848
    Abstract: The present disclosure relates to a process for obtaining an ultrapure polymer by simply and effectively removing unreacted residual monomer in polymer, which is generated during production of a biodegradable polymer such as polylactic acid or derivatives thereof.
    Type: Application
    Filed: July 6, 2017
    Publication date: September 5, 2019
    Applicant: SAMYANG BIOPHARMACEUTICALS CORPORATION
    Inventors: Na Young LEE, Young Joo KOH, Guw Dong YEO
  • In situ crosslinking hydrogel comprising ?-polyglutamic acid and method for producing the same
    Patent number: 9254348
    Abstract: Disclosed are a biodegradable, biocompatible hydrogel that can be used for sealants of suppressing the leakage of blood or air during surgical operation, tissue adhesives, anti-adhesive agents and drug delivery carriers, and a method for producing the same.
    Type: Grant
    Filed: December 28, 2012
    Date of Patent: February 9, 2016
    Assignee: SAMYANG BIOPHARMACEUTICALS CORPORATION
    Inventors: Young-Joo Koh, Hea-Kyung Kim, Sun-Woo Kim, Guw-Dong Yeo
  • IN SITU CROSSLINKING HYDROGEL COMPRISING gamma-POLYGLUTAMIC ACID AND METHOD FOR PRODUCING THE SAME
    Publication number: 20140336276
    Abstract: Disclosed are a biodegradable, biocompatible hydrogel that can be used for sealants of suppressing the leakage of blood or air during surgical operation, tissue adhesives, anti-adhesive agents and drug delivery carriers, and a method for producing the same
    Type: Application
    Filed: December 28, 2012
    Publication date: November 13, 2014
    Inventors: Young-Joo Koh, Hea-Kyung Kim, Sun-Woo Kim, Guw-Dong Yeo