Patents by Inventor Wei R. Chen

Wei R. Chen 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).

  • Chitosan-derived biomaterials
    Patent number: 5747475
    Abstract: Chitosan-derived biomaterials, and, more specifically, chitosan modified by the addition of a monosaccharide or oligosaccharide side chain to its free amino groups. The modified chitosan ("glycated chitosan") is preferably stabilized by reduction. In one particularly preferred embodiment, a galactose derivative of chitosan ("galacto-chitosan") is provided. The chitosan-derived biomaterials are useful in a myriad of biomedical applications, including as an immunoadjuvant in laser/sensitizer assisted immunotherapy.
    Type: Grant
    Filed: October 2, 1996
    Date of Patent: May 5, 1998
    Assignee: Wound Healing of Oklahoma
    Inventors: Robert E. Nordquist, Wei R. Chen, Raoul Carubelli, Robert Adams