Patents Assigned to Quadrant Bioresources Limited
  • Preservation of viruses
    Patent number: 5149653
    Abstract: A method of preserving live viruses comprises subjecting an aqueous system containing the virus to drying either in the frozen state or at ambient temperature, in the presence of trehalose.
    Type: Grant
    Filed: November 20, 1989
    Date of Patent: September 22, 1992
    Assignee: Quadrant Bioresources Limited
    Inventor: Bruce J. Roser
  • Dried food containing trehalose and method for preparing same
    Patent number: 5026566
    Abstract: A method of drying a water-containing foodstuff or beverage at a temperature above ambient, is characterized by incorporating trehalose into the foodstuff or beverage which is to be dried.
    Type: Grant
    Filed: May 1, 1989
    Date of Patent: June 25, 1991
    Assignee: Quadrant Bioresources, Limited
    Inventor: Bruce J. Roser
  • Protection of proteins and the like
    Patent number: 4891319
    Abstract: Sensitive proteins and other macromolecules, such as enzymes, antibodies, antigens, serum complement, fluorescent proteins, vaccine components, polysaccharides such as agarose etc, can be preserved by drying at ambient temperature and at atmospheric pressure in the presence of trehalose. A porous matrix impregnated with trehalose is provided as a receiver for a blood or other liquid sample to be dried.
    Type: Grant
    Filed: May 7, 1987
    Date of Patent: January 2, 1990
    Assignee: Quadrant Bioresources Limited
    Inventor: Bruce J. Roser