Patents by Inventor Margaret Stedman

Margaret Stedman 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).

  • Hydrogel wound dressings exhibiting reduced fiber losses in use
    Patent number: 10758423
    Abstract: A wound dressing comprising: a water-absorbent fabric comprising at least about 10 wt. % of hydrogel-forming absorbent fibers based on the dry weight of the fabric; and an adhesion-resistant, water-permeable wound contacting surface textile layer that is substantially continuously bonded to at least one surface of said fabric. The surface textile layer may be formed by surface treatment of the fabric, or by bonding a suitable textile web to the surface of the fabric.
    Type: Grant
    Filed: January 20, 2017
    Date of Patent: September 1, 2020
    Assignee: KCI USA, INC.
    Inventors: William Pigg, Margaret Stedman, Deborah Addison, Simon William Bayliff, Breda Mary Cullen, Paul Howard Lowing, Michelle Delbono
  • WOUND DRESSING WITH APERTURED COVER SHEET
    Publication number: 20190358361
    Abstract: A wound dressing comprising an antimicrobial absorbent layer containing silver, and an apertured sheet covering the antimicrobial absorbent layer, wherein the apertured sheet is formed from a liquid-impermeable sheet material having an array of apertures therein, said apertures having a mean effective diameter of from about 0.5 mm to about 2 mm, and wherein the percentage open area of the apertured sheet is from about 7% to about 25%. The selection of apertures in this range provides enhanced antimicrobial efficacy.
    Type: Application
    Filed: June 7, 2019
    Publication date: November 28, 2019
    Inventors: Rachael Louise McInnes, Margaret Stedman, Sally Stephens, Simon Bayliff
  • Hydrogel Wound Dressings Exhibiting Reduced Fiber Losses In Use
    Publication number: 20170128614
    Abstract: A wound dressing comprising: a water-absorbent fabric comprising at least about 10 wt. % of hydrogel-forming absorbent fibers based on the dry weight of the fabric; and an adhesion-resistant, water-permeable wound contacting surface textile layer that is substantially continuously bonded to at least one surface of said fabric. The surface textile layer may be formed by surface treatment of the fabric, or by bonding a suitable textile web to the surface of the fabric.
    Type: Application
    Filed: January 20, 2017
    Publication date: May 11, 2017
    Inventors: William PIGG, Margaret STEDMAN, Deborah ADDISON, Simon William BAYLIFF, Breda Mary CULLEN, Paul Howard LOWING, Michelle DELBONO
  • Hydrogel wound dressings exhibiting reduced fiber losses in use
    Patent number: 9579411
    Abstract: A wound dressing comprising: a water-absorbent fabric comprising at least about 10 wt. % of hydrogel-forming absorbent fibers based on the dry weight of the fabric; and an adhesion-resistant, water-permeable wound contacting surface textile layer that is substantially continuously bonded to at least one surface of said fabric. The surface textile layer may be formed by surface treatment of the fabric, or by bonding a suitable textile web to the surface of the fabric.
    Type: Grant
    Filed: July 12, 2007
    Date of Patent: February 28, 2017
    Assignee: KCI USA, Inc.
    Inventors: Deborah Addison, Simon William Bayliff, Breda Mary Cullen, Michelle Del Bono, William Pigg, Margaret Stedman, Paul Howard Lowing
  • WOUND DRESSING WITH APERTURED COVER SHEET
    Publication number: 20100291184
    Abstract: A wound dressing comprising an antimicrobial absorbent layer containing silver, and an apertured sheet covering the antimicrobial absorbent layer, wherein the apertured sheet is formed from a liquid-impermeable sheet material having an array of apertures therein, said apertures having a mean effective diameter of from about 0.5 mm to about 2 mm, and wherein the percentage open area of the apertured sheet is from about 7% to about 25%. The selection of apertures in this range provides enhanced antimicrobial efficacy.
    Type: Application
    Filed: September 10, 2008
    Publication date: November 18, 2010
    Inventors: Rachael Louise Clark, Margaret Stedman, Sally Stephens
  • Hydrogel Wound Dressings Exhibiting Reduced Fiber Losses in Use
    Publication number: 20100063467
    Abstract: A wound dressing comprising: a water-absorbent fabric comprising at least about 10 wt. % of hydrogel-forming absorbent fibers based on the dry weight of the fabric; and an adhesion-resistant, water-permeable wound contacting surface textile layer that is substantially continuously bonded to at least one surface of said fabric. The surface textile layer may be formed by surface treatment of the fabric, or by bonding a suitable textile web to the surface of the fabric.
    Type: Application
    Filed: July 12, 2007
    Publication date: March 11, 2010
    Inventors: Deborah Addison, Simon William Bayliff, Breda Mary Cullen, Michelle Del Bono, William Pigg, Margaret Stedman, Paul Howard Lowing
  • Umbrella stand
    Patent number: D752335
    Type: Grant
    Filed: January 31, 2014
    Date of Patent: March 29, 2016
    Assignee: Arty Brellas Pty Ltd
    Inventor: Patricia Margaret Stedman