Patents by Inventor Andrew James Kirkwood

Andrew James Kirkwood 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).

  • Absorbent wound dressing containing a hydrogel layer
    Patent number: 8058499
    Abstract: A wound dressing comprising: a liquid-permeable top sheet having a wound facing surface and a back surface, said top sheet being adapted to block or restrict passage of liquid from the back surface to the wound facing surface; and an insoluble hydrogel layer adjacent to the back surface of the top sheet.
    Type: Grant
    Filed: November 22, 2002
    Date of Patent: November 15, 2011
    Assignee: Systagenix Wound Management (US), Inc.
    Inventors: Derek Silcock, Andrew James Kirkwood
  • Therapeutic wound dressings with exudate-dependent enlargement of apertures
    Publication number: 20040241214
    Abstract: A wound dressing comprising: a wound contacting sheet having a wound facing surface and a back surface opposite the wound facing surface, and having apertures therein that open or enlarge in the presence of wound exudate; and a plurality of particles comprising one or more therapeutic agents located behind the back surface of the back sheet, wherein the particles are able to pass through the apertures to the wound facing surface of the sheet when the apertures are opened or enlarged in the presence of said wound exudate.
    Type: Application
    Filed: July 20, 2004
    Publication date: December 2, 2004
    Inventors: Andrew James Kirkwood, Breda Mary Cullen, Derek Walter Silcock, Jonathan Warrick