Patents by Inventor Larry R. Hillis

Larry R. Hillis 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 to derivatize dextran
    Patent number: 4975532
    Abstract: A method to convert the hydroxyl groups of solubilized dextran to the tresylate forms which can be displaced by a nucleophile is disclosed. The method of the invention requires the reaction of dextran with the tresylating reagent in the presence of dry DMSO. The resulting tresylate can be converted to labeled dextrans which have direct linkages of a nucleophilic label to the carbons of the dextran backbone.
    Type: Grant
    Filed: December 24, 1987
    Date of Patent: December 4, 1990
    Assignee: Sclavo, Inc.
    Inventors: Gerald L. Rowley, Larry R. Hillis