Patents by Inventor Kent M. Sproat

Kent M. Sproat 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 purification of amylase by precipitation with a metal halide and 4-hydroxybenzic acid or a derivative thereof
    Patent number: 5281526
    Abstract: The present invention relates to a method for the preparation of a purified amylase recovered from a fermentation broth, by the addition of a precipitation agent which is a halide salt, most preferably sodium or potassium chloride. According to a preferred embodiment, a further precipitation agent is added which is an organic compound, most preferably an alkyl ester of 4-hydroxybenzoic acid.The present invention also relates to the purified amylases so obtained and to the uses of these purified amylases.
    Type: Grant
    Filed: October 20, 1992
    Date of Patent: January 25, 1994
    Assignee: Solvay Enzymes, Inc.
    Inventors: Ivan C. Good, Chong Y. Kim, Jayarama K. Shetty, Kent M. Sproat