Patents by Inventor Vivian Granger

Vivian Granger 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).

  • Specimen collection fluid
    Patent number: 6579672
    Abstract: A sterile aqueous specimen collection fluid containing a buffer, an aliphatic aldehyde at a concentration of 0.15M to 3.4M, and one or more heavy metal salts at a concentration of 0.2×10−3M to 0.2M, and having a pH of 6.8 to 8.0. Also disclosed is a method of colleting a specimen with such a fluid for haematological analysis.
    Type: Grant
    Filed: April 26, 1999
    Date of Patent: June 17, 2003
    Assignees: Northern General Hospital, Central Sheffield University Hospitals NHS Trust Royal Hallamshire Hospital
    Inventors: Vivian Granger, David Barnett
  • Method for preparing a stabilized blood cell preparation using aged transition metal ion solution
    Patent number: 6197539
    Abstract: The invention is directed to novel methods of stabilizing blood compositions for use in the quality control of analytical techniques. The novel method comprises removing leucocytes from a blood composition to yield a depleted blood composition, stabilizing the leucocytes by treatment with an effective amount of a stabilizing agent comprising an aged transition metal solution, and then adding the resultant stabilized leucocytes to the depleted blood composition or a second blood component composition.
    Type: Grant
    Filed: June 24, 1996
    Date of Patent: March 6, 2001
    Assignee: Northern General Hospital N.H.S. Trust
    Inventors: Vivian Granger, David Barnett, John T. Reilly, Petra S. M. Mayr
  • Preparation and stabilization of cells using aged transition metal solutions
    Patent number: 6197540
    Abstract: The invention is directed to novel stabilized blood compositions and methods of stabilizing blood compositions for use in the quality control of analytical techniques. The novel blood compositions comprise leucocytes and an effective amount of an aged transition metal solution. The novel method comprises removing leucocytes from a blood composition to yield a depleted blood composition, stabilizing the leucocytes by treatment with an effective amount of a stabilizing agent comprising an aged transition metal solution, and then, adding the resultant stabilized leucocytes to the depleted blood composition or a second blood component composition.
    Type: Grant
    Filed: June 21, 1996
    Date of Patent: March 6, 2001
    Assignee: Northern General Hospital N.H.S. Trust
    Inventors: Vivian Granger, David Barnett, John T. Reilly, Petra S. M. Mayr, Shawn P. Fay
  • Method to stabilize cell suspensions using aged heavy metal solution and paraformaldehyde
    Patent number: 5858699
    Abstract: A stabilized cell suspension is prepared by treating the cell suspension with a solution of a heavy metal compound, which has been aged at pH 6.5-7.5 prior to use to allow a precipitate to form, removing the precipitate from the heavy metal solution, mixing the aged heavy metal solution with the cell suspension to form a first mixture, and mixing the first mixture with a paraformaldehyde solution to form a stabilized cell suspension which is still capable of lysis.
    Type: Grant
    Filed: January 27, 1997
    Date of Patent: January 12, 1999
    Assignee: Northern General Hospital NHS Trust
    Inventors: Vivian Granger, David Barnett