Patents by Inventor Ching-Nung Chen

Ching-Nung Chen 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 producing novel ?-lactam antibiotic from protoplast fusion strain
    Patent number: 7241588
    Abstract: The present invention provides a method for producing a novel ?-lactam antibiotic from a protoplast fusion strain. The method is to fermentatively culture the protoplast fusion strain of Penicillium chrysogenum and Cephalosporium acremonium. The ferment filtrate is isolated, lyophilized, and extracted by acetone or acetone/methanol. The extract is concentrated by decompression, and then analyzed by preparation type HPLC to isolate the active antibiotic compound.
    Type: Grant
    Filed: September 9, 2003
    Date of Patent: July 10, 2007
    Assignee: Grape King Inc.
    Inventors: Chin-Chu Chen, Ying-Shih Feng, Charng-Cherng Chyau, Ching-Nung Chen, Shih-Jeng Huang, Yen-Lien Chen, Hung-Ping Tseng, Wei-Hui Chung, Yi-Hsuan Chen
  • Method for producing novel beta-lactam antibiotic from protoplast fusion strain
    Publication number: 20050054031
    Abstract: The present invention provides a method for producing a novel ?-lactam antibiotic from a protoplast fusion strain. The method is to fermentatively culture the protoplast fusion strain of Penicillium chrysogenum and Cephalosporium acremonium. The ferment filtrate is isolated, lyophilized, and extracted by acetone or acetone/methanol. The extract is concentrated by decompression, and then analyzed by preparation type HPLC to isolate the active antibiotic compound.
    Type: Application
    Filed: September 9, 2003
    Publication date: March 10, 2005
    Inventors: Chin-Chu Chen, Ying-Shih Feng, Charng-Cherng Chyau, Ching-Nung Chen, Shih-Jeng Huang, Yen-Lien Chen, Hung-Ping Tseng, Wei-Hui Chung, Yi-Hsuan Chen