Patents Assigned to YOUREH CO., LTD.
  • Publication number: 20240066179
    Abstract: The present invention relates to a wound dressing comprising hyaluronic acid-calcium and polylysine, and a manufacturing method therefor, the method comprising: (1) a step for adjusting each of the pH values of a hyaluronic acid-calcium salt and a polylysine aqueous solution to 8.4 or higher, and then mixing the hyaluronic acid-calcium salt and the polylysine aqueous solution to obtain a mixture liquid; and (2) obtaining a wound dressing from the mixture liquid obtained in Step (1).
    Type: Application
    Filed: November 8, 2023
    Publication date: February 29, 2024
    Applicant: YOUREH CO., LTD.
    Inventors: Hyang Mae UM, Ja Young SEOL
  • Patent number: 11359030
    Abstract: The present invention relates to a method for preparing low molecular weight hyaluronic acid having a molecular weight of 100,000 to 200,000 daltons, the method comprising heating treatment, in the pH range 2.5 to 3.5, for an aqueous solution that contains hyaluronic acid having a molecular weight of 500,000 daltons or greater.
    Type: Grant
    Filed: April 9, 2018
    Date of Patent: June 14, 2022
    Assignee: YOUREH CO., LTD.
    Inventor: Hyang Mae Um
  • Publication number: 20210228768
    Abstract: The present invention relates to a wound dressing comprising hyaluronic acid-calcium and polylysine, and a manufacturing method therefor, the method comprising: (1) a step for adjusting each of the pH values of a hyaluronic acid-calcium salt and a polylysine aqueous solution to 8.4 or higher, and then mixing the hyaluronic acid-calcium salt and the polylysine aqueous solution to obtain a mixture liquid; and (2) obtaining a wound dressing from the mixture liquid obtained in Step (1).
    Type: Application
    Filed: July 25, 2018
    Publication date: July 29, 2021
    Applicant: YOUREH CO., LTD.
    Inventors: Hyang Mae UM, Ja Young SEOL