Patents by Inventor Wei Hai Shen

Wei Hai Shen 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).

  • Diphtheria toxin vaccines bearing a mutated R domain
    Patent number: 5917017
    Abstract: Diphtheria toxin polypeptides comprising a mutant R binding domain exhibit reduced target cell binding and may be used as vaccines to immunize a mammal against infection by Corynebacterium diphtheria.
    Type: Grant
    Filed: June 8, 1994
    Date of Patent: June 29, 1999
    Assignees: President and Fellows of Harvard College, The Regents of the University of California
    Inventors: R. John Collier, Wei Hai Shen, David Eisenberg, Seunghyon Choe