Patents by Inventor David Fitzgerald Webster

David Fitzgerald Webster 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).

  • Moisture-responsive absorbent wound dressing
    Patent number: 5782787
    Abstract: An absorbent wound dressing (1) includes a polymer foam layer (3) having a plurality of discrete zones (2) on at least one surface (4) of the foam layer, the material forming the zones being less swellable than the foam layer material, such that when the dressing is placed with the zones of polymeric material in contact with a wet surface, the zones move apart as the foam layer absorbs fluid and swells.
    Type: Grant
    Filed: August 14, 1995
    Date of Patent: July 21, 1998
    Assignee: Smith & Nephew plc
    Inventor: David Fitzgerald Webster