Patents by Inventor Simon W. Keen

Simon W. Keen 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).

  • Vaccine preparations
    Publication number: 20040241190
    Abstract: Live or killed preparations of attenuated mutant Neisseria bacteria, e.g. N. meningitidis, have the following mutations: (a) an auxotrophic attenuating mutation, e.g. AroA or AroB mutation, (b) a capsule mutation, e.g. synX or galE mutation, and also (c) a mutation which reduces bacterial recombination or exogenous DNA uptake, such as RecA and/or comA mutations. The mutants and their preparations can be used in vaccine compositions.
    Type: Application
    Filed: April 6, 2004
    Publication date: December 2, 2004
    Applicant: Xenova Research Limited
    Inventors: Cornelia S. McLean, Simon W. Keen, Gillian May Martin