Patents by Inventor Derek Michael Hull

Derek Michael Hull 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).

  • Oral composition
    Patent number: 6355227
    Abstract: An oral composition comprises perlite, characterised in that it comprises from 0.01 to 0.9% by weight perlite.
    Type: Grant
    Filed: June 2, 2000
    Date of Patent: March 12, 2002
    Assignee: Unilever Home & Personal Care USA, division of Conopco, Inc.
    Inventors: Isotta Di-Drusco, Derek Michael Hull