Patents by Inventor Hyang Mae UM

Hyang Mae UM 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).

  • WOUND DRESSING COMPRISING HYALURONIC ACID-CALCIUM AND POLYLYSINE AND MANUFACTURING METHOD THEREFOR
    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
  • Method for preparing low molecular weight hyaluronic acid
    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
  • WOUND DRESSING COMPRISING HYALURONIC ACID-CALCIUM AND POLYLYSINE AND MANUFACTURING METHOD THEREFOR
    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
  • METHOD FOR PREPARING LOW MOLECULAR WEIGHT HYALURONIC ACID
    Publication number: 20200095344
    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: Application
    Filed: April 9, 2018
    Publication date: March 26, 2020
    Inventor: Hyang Mae UM