Patents by Inventor Christopher J. Koh

Christopher J. Koh 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 increasing asparaginase activity in a solution
    Patent number: 8486684
    Abstract: A stable asparaginase solution is disclosed. In one aspect, drinking water is treated to reduce the level of chlorine to enhance the residual enzyme activity of asparaginase. The treatment can occur by removing chlorine constituents or by supplying additives that reduces the level of chlorine. Additives can include reducing agents and chlorine scavengers. Removal technologies can include use of activated carbon, ion exchange, and air stripping.
    Type: Grant
    Filed: August 13, 2007
    Date of Patent: July 16, 2013
    Assignee: Frito-Lay North America, Inc.
    Inventors: Vincent Allen Elder, Christopher J. Koh, James Keith Henson
  • Method for Increasing Asparaginase Activity in a Solution
    Publication number: 20090047725
    Abstract: A stable asparaginase solution is disclosed. In one aspect, drinking water is treated to reduce the level of chlorine to enhance the residual enzyme activity of asparaginase. The treatment can occur by removing chlorine constituents or by supplying additives that reduces the level of chlorine. Additives can include reducing agents and chlorine scavengers. Removal technologies can include use of activated carbon, ion exchange, and air stripping.
    Type: Application
    Filed: August 13, 2007
    Publication date: February 19, 2009
    Inventors: Vincent Allen Elder, Christopher J. Koh, James Keith Henson