Patents by Inventor Mark A. Humphreys

Mark A. Humphreys 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).

  • Silcone modified proteins
    Patent number: 5412074
    Abstract: Organofunctional silicone chains having an organic moiety on at least one end of the chains, are covalently linked to free amino groups of proteins by the organic moieties to provide a useful ingredient for cosmetic formulations.
    Type: Grant
    Filed: November 2, 1992
    Date of Patent: May 2, 1995
    Assignee: Croda International PLC.
    Inventors: Roger T. Jones, Mark A. Humphreys