Patents by Inventor Kuan-Yen Tung

Kuan-Yen Tung 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).

  • Method for preparing low endotoxin collagen
    Patent number: 10487135
    Abstract: A method for preparing low endotoxin collagen is disclosed. The method includes the following steps: providing an animal skin, removing residual adipose tissues and muscle tissues, swelling the animal skin by alkaline solution, peeling the upper and lower surfaces of the animal skin, hydrolyzing the animal skin by a solution including hydrolase, salting out the low endotoxin collagen by salt solutions, and washing the low endotoxin collagen by alcohols.
    Type: Grant
    Filed: January 15, 2018
    Date of Patent: November 26, 2019
    Assignee: GUANGDONG VICTORY BIOTECH CO., INC.
    Inventors: Chen-Chih Tsai, Kuan-Yen Tung
  • METHOD FOR PREPARING LOW ENDOTOXIN COLLAGEN
    Publication number: 20190055303
    Abstract: A method for preparing low endotoxin collagen is disclosed. The method includes the following steps: providing an animal skin, removing residual adipose tissues and muscle tissues, swelling the animal skin by alkaline solution, peeling the upper and lower surfaces of the animal skin, hydrolyzing the animal skin by a solution including hydrolase, salting out the low endotoxin collagen by salt solutions, and washing the low endotoxin collagen by alcohols.
    Type: Application
    Filed: January 15, 2018
    Publication date: February 21, 2019
    Inventors: Chen-Chih Tsai, Kuan-Yen Tung