Patents by Inventor Henry Keith

Henry Keith 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).

  • Process for enzymatically converting glycolonitrile to glycolic acid
    Patent number: 7867739
    Abstract: A process is provided to improve the specific activity of an enzyme catalyst having nitrilase activity when converting glycolonitrile to glycolic acid under aqueous reaction conditions. Inclusion of an effective amount of at least one amine protectant improves the specific activity and catalytic productivity of the enzyme catalyst.
    Type: Grant
    Filed: April 24, 2009
    Date of Patent: January 11, 2011
    Assignee: E. I. du Pont de Nemours and Company
    Inventors: Robert Dicosimo, Anna Panova, Samuel D. Arthur, Henry Keith