Patents by Inventor Jonathan David Mawson

Jonathan David Mawson 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).

  • Tea manufacture
    Patent number: 6254902
    Abstract: A method for processing whole leaf tea that involves impregnating tea leaves with liquid carbon dioxide within a pressure vessel, depressurising the vessel at a rate that is sufficient to freeze the liquid carbon dioxide, applying sufficient heat to cause the frozen carbon dioxide to sublime and consequently initiate fermentation within the leaves, allowing the tea to ferment for a time that is sufficient to achieve desired liquor properties, and drying the fermented product to yield the whole leaf tea. An apparatus for manufacturing such a leaf tea is also described.
    Type: Grant
    Filed: August 17, 1999
    Date of Patent: July 3, 2001
    Assignee: Lipton, a division of Conopco, Inc.
    Inventors: Rosalind Clare Hodges, Jonathan David Mawson