Patents by Inventor Simon H. Wallis

Simon H. Wallis 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 of making carboxylated dextran
    Patent number: 6703499
    Abstract: The present invention provides a process of preparing a novel carboxylic acid derivative of dextran. In particular, in the present invention, carboxylated dextran containing at least one carboxylic acid is reduced to remove all or substantially all reducing groups.
    Type: Grant
    Filed: April 29, 1999
    Date of Patent: March 9, 2004
    Assignee: Polydex Pharmaceuticals Ltd.
    Inventors: Thomas C. Usher, Simon H. Wallis