Patents by Inventor Shajoung Chang

Shajoung Chang 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).

  • Sustained release solid formulations and methods of manufacturing the same
    Patent number: 8951557
    Abstract: Disclosed are a sustained release solid formulation comprising a drug, for example, oxycodone or its pharmaceutically acceptable salt, in a water-insoluble matrix, which comprises a wax type excipient and copovidone, and thus, has increased compressibility and fluidity and reduced adhesiveness, and a method of preparing the same.
    Type: Grant
    Filed: April 28, 2008
    Date of Patent: February 10, 2015
    Assignee: Hana Pharm. Co. Ltd.
    Inventors: Shajoung Chang, Oak Choi
  • Sustained Release Solid Formulations and Methods of Manufacturing the Same
    Publication number: 20110008424
    Abstract: Disclosed are a sustained release solid formulation comprising a drug, for example, oxycodone or its pharmaceutically acceptable salt, in a water-insoluble matrix, which comprises a wax type excipient and copovidone, and thus, has increased compressibility and fluidity and reduced adhesiveness, and a method of preparing the same.
    Type: Application
    Filed: April 28, 2008
    Publication date: January 13, 2011
    Applicant: HANA PHARM. CO., LTD.
    Inventors: Shajoung Chang, Oak Choi