Patents by Inventor David R. H. Harding

David R. H. Harding 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).

  • Methods for the preparation of resins with ligands attached thereto through a linking group comprising sulfide, sulfoxide or sulfone functionality
    Patent number: 5789578
    Abstract: Disclosed are methods for the preparation of resins comprising a support matrix having ligands capable of binding a target compound covalently attached thereto through a linking group comprising sulfide, sulfoxide, or sulfone functionality. Specifically, in the disclosed methods, a support matrix comprising ethylenically unsaturated functionality is converted to sulfide linkage by contact with a thiol group under free radical reaction conditions and subsequent optional oxidation of the sulfide to the sulfone or sulfoxide functionality.
    Type: Grant
    Filed: January 11, 1996
    Date of Patent: August 4, 1998
    Assignee: Massey University
    Inventors: Simon C. Burton, David R. H. Harding