Patents by Inventor Dz-chi Chen

Dz-chi 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).

  • Super-secreting saccharomyces cerevisiae strains
    Patent number: 6566122
    Abstract: A super-secreting protease A-deficient strain of Saccharomyces cerevisiae, which, when starved for a nitrogen source, undergoes a pseudohyphal-like growth mode, and, when transformed with a secretion vector containing a DNA sequence which encodes a mouse &agr;-amylase, is capable of secreting the mouse &agr;-amylase at 2,000 to 15,000 units/liter.
    Type: Grant
    Filed: June 16, 2000
    Date of Patent: May 20, 2003
    Assignee: Academia Sinica
    Inventors: Bi-Dar Wang, Dz-Chi Chen, Tsong-Teh Kuo
  • Protease A-deficient Saccharomyces cerevisiae
    Patent number: 6210954
    Abstract: A stable protease A-deficient host strain of Saccharomyces cerevisiae, which undergoes a pseudohyphal-like growth mode when starved for a nitrogen source and is capable of expressing and secrets a heterologous protein when transformed with a secretion vector containing a DNA sequence which encodes the heterologous protein. Also disclosed is a Saccharomyces cerevisiae transformant obtained by transforming such a strain with a secretion vector containing a DNA sequence which encodes a desirable heterologous protein.
    Type: Grant
    Filed: October 29, 1998
    Date of Patent: April 3, 2001
    Assignee: National Science Council
    Inventors: Tsong-teh Kuo, Dz-chi Chen