Patents by Inventor David Pate

David Pate 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).

  • Processes and apparatus for extraction of active substances and enriched extracts from natural products
    Patent number: 7622140
    Abstract: Processes for preparing extracts of natural products such as plant material, and for preparing purified extracts from crude extracts of natural products, by extraction with hot gas. Apparatus suitable for use in preparing extracts of natural products are also described.
    Type: Grant
    Filed: May 7, 2002
    Date of Patent: November 24, 2009
    Assignee: GW Pharma Limited
    Inventors: Brian Whittle, Geoffrey Guy, David Downs, David Pate