Patents by Inventor Barbara Y. F. Wan

Barbara Y. F. Wan 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).

  • Surface modification of substrates
    Publication number: 20040048021
    Abstract: Methods of improving the surface characteristics of a medical device or instrument, and the devices and instruments improved thereby, are provided. The disclosed methods involve the chemical attachment of an activated hyaluronic acid, such as hyaluronic acid reacted with a carbodiimide, onto the surface of the device. The hyaluronic acid can be modified to include the presence of Fe+3 or Al+3 cations to prevent calcification of the device and surrounding tissue. The devices and instruments are particularly useful during a surgical procedure.
    Type: Application
    Filed: December 4, 2002
    Publication date: March 11, 2004
    Inventors: Barbara Y. F. Wan, Robert J. Miller
  • Phospholipid-saccharide conjugates
    Patent number: 5354853
    Abstract: Novel phospholipid-saccharide conjugates are produced by the reaction of a phospholipid derivative and an activated saccharide. The resulting conjugates can be used to make liposomes which are target-specific or resistant to degradation in vivo.
    Type: Grant
    Filed: March 12, 1993
    Date of Patent: October 11, 1994
    Assignee: Genzyme Corporation
    Inventors: Mark M. Staveski, Barbara Y. F. Wan, Alan E. Walts