Patents by Inventor Dale Hirst

Dale Hirst 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).

  • Biologically active materials
    Patent number: 6338843
    Abstract: A polymer-drug conjugate, in which the polymer is the polysaccharide dextrin, linked directly or indirectly to the drug, is effective to deliver the drug to a target site and is biodegradable. The conjugate may be prepared by succinoylating dextrin followed by reaction with the drug or a derivative thereof.
    Type: Grant
    Filed: March 23, 2000
    Date of Patent: January 15, 2002
    Assignee: ML Laboratories
    Inventors: Ruth Duncan, James Cassidy, Lisa German, Dale Hirst