Patents by Inventor David Shiuan

David Shiuan 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).

  • Methods for preparing yeast with improved biotin productivity using integrating plasmids encoding biotin synthase
    Patent number: 7033814
    Abstract: Methods for preparing yeast with improved biotin productivity using integrating plasmids encoding biotin synthase. The yeast is transformed by an integrating plasmid, which includes a Candida utilis biotin synthase gene BIO2, an assistant DNA sequence to promote integration of the plasmid into the C. utilis genome, a promoter sequence, and a selection marker. Other embodiments include Saccharomyces cerevisiae integrating plasmids.
    Type: Grant
    Filed: January 2, 2001
    Date of Patent: April 25, 2006
    Assignee: National Science Council
    Inventor: David Shiuan
  • Yeast with high biotin-productivity and the preparation method thereof
    Publication number: 20030104584
    Abstract: The invention discloses a yeast with high biotin-productivity and the preparation method thereof. The yeast is transformed by an integrated plasmid, which includes a biotin synthase gene, an assistant DNA sequence for the integration of the plasmid into a host genome, a promoter sequence, and a selection marker.
    Type: Application
    Filed: January 2, 2001
    Publication date: June 5, 2003
    Inventor: David Shiuan