Patents by Inventor Margaret Elizabeth Spencer

Margaret Elizabeth Spencer 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).

  • Recombinant 47 and 31KD cocoa proteins and precursor
    Patent number: 5770433
    Abstract: 47 kD and 31 kD proteins, and their 67 kD expression precursor, believed to be the source of peptide flavour precursors in cocoa (Theobroma cacao) have been identified. Genes coding for them have been probed, identified and sequenced, and recombinant proteins have been synthesised.
    Type: Grant
    Filed: January 21, 1993
    Date of Patent: June 23, 1998
    Assignee: Mars U.K. Limited
    Inventors: Margaret Elizabeth Spencer, Rachel Hodge, Edward Alfred Deakin, Sean Ashton
  • Peroxidase produced by plant cell cultures
    Patent number: 5670357
    Abstract: A process for the production of peroxidase enzyme comprising an undifferentiated liquid suspension culture of peroxidase-producing plant cells from a plant of the species Theobroma cacao, Coleus blumei, and Silene alba, wherein the culture medium contains a carbohydrate waste material, and peroxidase enzymes derived therefrom.
    Type: Grant
    Filed: September 19, 1994
    Date of Patent: September 23, 1997
    Assignee: Phytera, Inc.
    Inventors: Gagik Stepan-Sarkissian, Debbie Grey, Margaret Elizabeth Spencer, Angela Marian Stafford, Sean Michael Vincent Ashton, Sandra Jane Scollick
  • Recombinant 21 kD cocoa protein and precursor
    Patent number: 5668007
    Abstract: A 21 kD protein, and its 23 kD expression precursor, as the source of peptide flavor precursors in cocoa (Theobroma cacao) have been identified. Genes coding for them have been probed, identified and sequenced, and recombinant proteins have been synthesized.
    Type: Grant
    Filed: December 11, 1992
    Date of Patent: September 16, 1997
    Assignee: Mars UK Limited
    Inventors: Margaret Elizabeth Spencer, Rachel Hodge