Patents by Inventor Chao-Ho Chung

Chao-Ho 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).

  • Pharmaceutically acceptable salt of amlodipine and method of preparing the same
    Patent number: 6699892
    Abstract: The present invention discloses a novel and improved pharmaceutical salt, nicotinate, of amlodipine having the following formula: The present invention also discloses methods for preparing and using the same.
    Type: Grant
    Filed: June 4, 2002
    Date of Patent: March 2, 2004
    Assignee: Yung Shin Pharmaceutical Industrial Co., Ltd.
    Inventors: Fang Yu Lee, Tsang-Miao Huang, Chao-Ho Chung
  • Pharmaceutically acceptable salt of amlodipine and method of preparing the same
    Publication number: 20030225143
    Abstract: The present invention discloses a novel and improved pharmaceutical salt, nicotinate, of amlodipine having the following formula: 1
    Type: Application
    Filed: June 4, 2002
    Publication date: December 4, 2003
    Inventors: Fang Yu Lee, Tsang-Miao Huang, Chao-Ho Chung
  • Method for producing 5-aryloxymethyl-2-oxazolidinones
    Patent number: 6562980
    Abstract: The present invention provides a method for making 5-aryloxymethyl-2-oxazolidinone and derivatives thereof having the general formula of: wherein R1 and R2 are hydrogen, alkyl, or alkoxyl group and wherein the alkyl or alkoxyl group contains no more than three carbon atoms in straight or branched chain. The invention involves the fusion of a triglycidyl isocyanurate (TGIC) with an unsubstituted or a mono- or di-substituted phenol.
    Type: Grant
    Filed: August 19, 2002
    Date of Patent: May 13, 2003
    Assignee: Yung Shin Pharma Ind. Co., Ltd.
    Inventors: Fang-Yu Lee, Tsang-miao Huang, Chao-Ho Chung