Patents by Inventor Hojin Chung

Hojin Chung 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).

  • Pharmaceutical compositions for release control of methylphenidate
    Patent number: 8465768
    Abstract: Disclosed is a pharmaceutical composition for release control comprising a plurality of particles for release control. The plurality of particles for release control comprise a core material containing methylphenidate and a polymer coating layer for release control formed on the core material. The plurality of particles for release control are divided into two or more groups based on the average thickness of the polymer coating layer for release control. The particle groups are identical in terms of the composition of the polymer in the polymer coating layer, but are different in terms of the average thickness of the coated layer. The pharmaceutical composition for release control according to the present invention may control the release pattern of methylphenidate contained in the core material as desired, and can be used as an oral formulation in a variety of forms such as orally disintegrating tablets, etc.
    Type: Grant
    Filed: November 6, 2009
    Date of Patent: June 18, 2013
    Assignee: Samyang Biopharmaceuticals Corporation
    Inventors: Sang Yeob Park, Hojin Chung, Chaul Min Pai
  • PHARMACEUTICAL COMPOSITIONS FOR RELEASE CONTROL OF METHYLPHENIDATE
    Publication number: 20110223247
    Abstract: Disclosed is a pharmaceutical composition for release control comprising a plurality of particles for release control. The plurality of particles for release control comprise a core material containing methylphenidate and a polymer coating layer for release control formed on the core material. The plurality of particles for release control are divided into two or more groups based on the average thickness of the polymer coating layer for release control. The particle groups are identical in terms of the composition of the polymer in the polymer coating layer, but are different in terms of the average thickness of the coated layer. The pharmaceutical composition for release control according to the present invention may control the release pattern of methylphenidate contained in the core material as desired, and can be used as an oral formulation in a variety of forms such as orally disintegrating tablets, etc.
    Type: Application
    Filed: November 6, 2009
    Publication date: September 15, 2011
    Applicant: SAMYANG CORPORATION
    Inventors: Sang Yeob Park, Hojin Chung, Chaul Min Pai