Patents by Inventor Yu-Kao CHENG

Yu-Kao CHENG 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).

  • ENTERIC SUSTAINED-RELEASE COATED CORE AND PHARMACEUTICAL DOSAGE FORM AND METHOD FOR MANUFACTURING THE SAME
    Publication number: 20090186087
    Abstract: An enteric sustained-release coated core includes a drug-containing core and a coating film. The coating film includes 20%˜80% by weight of a hydrophobic polymer and 10%˜70% by weight of an enterosoluble material. The dissolution rate of the medical component in the drug-containing core is approximately less than 10% in hydrochloric acid solution of pH 1˜3 after 2 hours. The dissolution of the medical component in the drug-containing core sustains more than 5 hours in phosphate buffer solution of pH 5˜8.
    Type: Application
    Filed: January 21, 2009
    Publication date: July 23, 2009
    Applicant: TAIWAN BIOTECH CO., LTD.
    Inventors: Min-Chuan HSU, Yu-Kao CHENG, Li-Chin LIN