Patents by Inventor John R. Woodrow

John R. Woodrow 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).

  • Patent number: 6034221
    Abstract: A process is provided for the preparation of albumin which has extremely low levels of or is essentially free of colorants, metal ions, human proteins, fragments of albumin, polymers or aggregates of albumin, and viruses, and which is relatively non-glycated, relatively high in free thiol and with an intact C-terminus. The process comprises passing albumin (preferably expressed and secreted by transformed yeast) through two chromatography purifications, ultrafiltering the product, passing through two further chromatography steps and again ultrafiltering the product.
    Type: Grant
    Filed: November 14, 1997
    Date of Patent: March 7, 2000
    Assignee: Delta Biotechnology Limited
    Inventors: Stephen Berezenko, John R. Woodrow, Richard A. Johnson, Patricia C. Wood, Steven J. Burton, Alan V. Quirk, David St. J. Coghlan, Mark J. Wilson
  • Patent number: 5905143
    Abstract: When proteins are purified using a protein-binding dye immobilized on a chromatographic matrix, the dye or a portion/derivative may leak into the eluant. An ion-exchange resin (e.g. Dowex-1) and a disrupting material (e.g. salt and a fatty acid such as sodium octanoate) are used to separate the dye from the protein to overcome the protein of the leaking dye.
    Type: Grant
    Filed: February 28, 1997
    Date of Patent: May 18, 1999
    Assignee: Delta Biotechnology Limited
    Inventors: Richard A. Johnson, Alan V. Quirk, John R. Woodrow
  • Patent number: 5728553
    Abstract: A process for the preparation of albumin which has extremely low levels of or is essentially free of colorants, metal ions, human proteins, fragments of albumin, polymers or aggregates of albumin, and viruses, and which is relatively non-glycated, relatively high in free thiol and with an intact C-terminus. The process comprises passing albumin (preferably expressed and secreted by transformed yeast) through two chromatography purifications, ultrafiltering the product, passing through two further chromatography steps and again ultrafiltering the product.
    Type: Grant
    Filed: May 25, 1995
    Date of Patent: March 17, 1998
    Assignee: Delta Biotechnology Limited
    Inventors: Andrew R. Goodey, Darrell Sleep, Hendrik van Urk, Stephen Berezenko, John R. Woodrow, Richard A. Johnson, Patricia C. Wood, Steven J. Burton, Alan V. Quirk, David St. J. Coghlan, Mark J. Wilson
  • Patent number: 5625041
    Abstract: Problem: when proteins are purified using a protein-binding dye immobilised on a chromatographic matrix, the dye or a portion/derivative may leak into the eluant. Solution: an ion-exchange resin (e.g. Dowex-1) and a disrupting material (e.g. salt and a fatty acid such as sodium octanoate) are used to separate the dye from the protein.
    Type: Grant
    Filed: November 22, 1994
    Date of Patent: April 29, 1997
    Assignee: Delta Biotechnology Limited
    Inventors: Richard A. Johnson, Alan V. Quirk, John R. Woodrow