Patents by Inventor Elizabeth Francis

Elizabeth Francis 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).

  • Process for fractionating polyethylene glycol (PEG) - protein adducts and an adduct of PEG and granulocyt-macrophage colony stimulating factor
    Publication number: 20020127244
    Abstract: The present invention provides adducts of polyethylene glycol and granulocyte-macrophage colony stimulating factor as well as methods for modifying a protein with pleiotropic activities which involve coupling polyethylene glycol to the protein.
    Type: Application
    Filed: March 12, 2002
    Publication date: September 12, 2002
    Applicant: PolyMASC Pharmaceuticals plc.
    Inventors: Cristina Delgado, Gillian Elizabeth Francis, Derek Fisher
  • Process for fractionating polyethylene glycol (PEG) —protein adducts and an adduct of PEG and granulocyt-macrophage colony stimulating factor
    Patent number: 6384195
    Abstract: The present invention provides adducts of polyethylene glycol and granulocyte-macrophage colony stimulating factor as well as methods for modifying a protein with pleiotropic activities which involve coupling polyethylene glycol to the protein.
    Type: Grant
    Filed: January 21, 1999
    Date of Patent: May 7, 2002
    Assignee: PolyMASC Pharmaceuticals plc.
    Inventors: Cristina Delgado, Gillian Elizabeth Francis, Derek Fisher
  • Process for fractionating polyethylene glycol (PEG)-protein adducts and an adduct of PEG and granulocyte-macrophage colony stimulating factor
    Patent number: 5880255
    Abstract: The invention relates to fractionating a mixture of polyethylene glycol (PEG)-protein adducts having different degrees of PEG substitution by partitioning the PEG-protein adducts in a PEG-containing aqueous biphasic system according to the degree of PEG substitution. A new PEG-gm-CSF obtained by the process is useful in pharmaceutical compositions for use in therapeutic or diagnostic methods.
    Type: Grant
    Filed: April 14, 1995
    Date of Patent: March 9, 1999
    Assignee: PolyMASC Pharmaceuticals plc
    Inventors: Cristina Delgado, Gillian Elizabeth Francis, Derek Fisher
  • Hopscotch game
    Patent number: 5785613
    Abstract: The hopscotch game of the invention includes a housing having positioned thereon sequentially numbered spaces projecting above a top surface of the housing, such that sequential players direct playing pieces onto the spaces in a sequential manner skipping over spaces upon which the playing disc has been directed. Flashing illumination and audio signal generator structure is provided to be discontinued when a player has finished a turn.
    Type: Grant
    Filed: April 9, 1996
    Date of Patent: July 28, 1998
    Inventor: Elizabeth Francis