Patents by Inventor Chun Fai Yu

Chun Fai Yu 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 of biosynthesizing tetrodotoxin
    Patent number: 7977074
    Abstract: The present invention relates methods for the biosynthesis of tetrodotoxin (TTX) involving the steps of obtaining a culture possessing one or more of a Vibrio species, such as through a seed culture, inoculating the culture and tissue extract from a textrodotoxin-bearing organism in a fermenter medium, and isolating and purifying tetrodotoxin from said fermenter, resulting in a yield of TTX of about 0.5 g TTX/L in about 3 to 5 days, such TTX being at least 90% pure.
    Type: Grant
    Filed: February 23, 2007
    Date of Patent: July 12, 2011
    Assignee: The Hong Kong Polytechnic University
    Inventors: Peter Hoi-fu Yu, Chun Fai Yu
  • Method of biosynthesizing tetrodotoxin
    Publication number: 20080206825
    Abstract: The present invention relates methods for the biosynthesis of tetrodotoxin (TTX) involving the steps of obtaining a culture possessing one or more of a Vibrio species, such as through a seed culture, inoculating the culture and tissue extract from a textrodotoxin-bearing organism in a fermenter medium, and isolating and purifying tetrodotoxin from said fermenter, resulting in a yield of TTX of about 0.5 g TTX/L in about 3 to 5 days, such TTX being at least 90% pure.
    Type: Application
    Filed: February 23, 2007
    Publication date: August 28, 2008
    Applicant: The Hong Kong Polytechinc University
    Inventors: Peter Hoi-fu Yu, Chun Fai Yu