Patents by Inventor Sally Stephens

Sally Stephens 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: 11432968
    Abstract: A wound dressing product that includes a substrate layer having an upper surface and a lower surface; a tacky silicone coating composition present on the upper surface and on the lower surface; and upper and lower release sheets covering the substrate and the tacky silicone coating composition on the upper and lower surfaces, respectively, and adhered to the surfaces by the tacky silicone coating composition, wherein the upper surface is less tacky than the lower surface whereby the upper release sheet can be removed from the upper surface more readily than the lower release sheet can be removed from the lower surface. Also provided are methods for making such dressings.
    Type: Grant
    Filed: June 10, 2019
    Date of Patent: September 6, 2022
    Assignee: Systagenix Wound Management, Limited
    Inventors: Deborah Addison, Sally Stephens, Rachel Hadley
  • Patent number: 11141318
    Abstract: A wound dressing comprising: a backing sheet; a layer of pressure-sensitive adhesive on the backing sheet; an island of absorbent material having smaller area than the backing sheet and applied onto a central region of the backing sheet so as to leave a margin of adhesive-coated backing sheet around the absorbent material, and an apertured wound facing layer applied over the absorbent material and adhered to the backing sheet around said island by said pressure-sensitive adhesive, wherein the apertured wound facing layer comprises an apertured substrate having a coating of a silicone gel on the wound facing surface thereof, the open area of the apertured wound facing layer is from about 5% to about 75%, and the apertured wound facing layer comprises apertures having an open area of from about 2 mm2 to about 100 mm2.
    Type: Grant
    Filed: July 25, 2017
    Date of Patent: October 12, 2021
    Assignee: KCl USA, INC.
    Inventors: William Pigg, Michelle Delbono, Sally Stephens
  • Patent number: 10568767
    Abstract: A method of making a wound dressing comprising the steps of: providing an apertured substrate layer; coating the substrate layer with a fluid silicone prepolymer composition; thermally partially curing said silicone prepolymer composition to form a partially cured silicone coating on the substrate; laminating the coated substrate layer to a base layer to form a laminate having said partially cured silicone coating in contact with a surface of the base layer; followed by exposing the laminate to ionizing radiation, to further cure the partially cured silicone coating and to bond the silicone coating to said surface of the base layer. The radiation cure results in strong bonding between the siliconized substrate and incompatible base layers such as polyurethane foams. Also provided are wound dressings obtainable by the process of the invention.
    Type: Grant
    Filed: January 31, 2012
    Date of Patent: February 25, 2020
    Assignee: KCI USA, INC.
    Inventors: Deborah Addison, Sally Stephens, Patrick Joseph Brosnan
  • 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
  • Patent number: 10357406
    Abstract: A method of applying a patterned coating of a silicone adhesive to a substrate sheet, comprising the steps of pattern coating a silicone precursor composition onto the substrate, followed by thermally curing the precursor composition coated on the substrate. The precursor composition is a viscous fluid, and the pattern coating is performed by suitably modified block printing, intaglio printing or screen printing methods. Also provided are coated substrates obtainable by the methods of the invention, and wound dressings comprising such coated substrates.
    Type: Grant
    Filed: August 1, 2016
    Date of Patent: July 23, 2019
    Assignee: KCI USA, INC.
    Inventors: Deborah Addison, Sally Stephens, Patrick Joseph Brosnan, Gary Street, Ian Teet, Risham Amjad
  • Patent number: 10314748
    Abstract: A wound dressing product that includes a substrate layer having an upper surface and a lower surface; a tacky silicone coating composition present on the upper surface and on the lower surface; and upper and lower release sheets covering the substrate and the tacky silicone coating composition on the upper and lower surfaces, respectively, and adhered to the surfaces by the tacky silicone coating composition, wherein the upper surface is less tacky than the lower surface whereby the upper release sheet can be removed from the upper surface more readily than the lower release sheet can be removed from the lower surface. Also provided are methods for making such dressings.
    Type: Grant
    Filed: February 23, 2016
    Date of Patent: June 11, 2019
    Assignee: KCI USA, INC.
    Inventors: Deborah Addison, Sally Stephens, Rachel Hadley
  • Patent number: 10271995
    Abstract: A wound dressing comprising: a backing sheet; a layer of pressure-sensitive adhesive on the backing sheet; an island of absorbent material having smaller area than the backing sheet and applied onto a central region of the backing sheet so as to leave a margin of adhesive-coated backing sheet around the absorbent material, and an apertured wound facing layer applied over the absorbent material and adhered to the backing sheet around said island by said pressure-sensitive adhesive, wherein the apertured wound facing layer comprises an apertured substrate having a coating of a silicone gel on the wound facing surface thereof, the open area of the apertured wound facing layer is from about 5% to about 75%, and the apertured wound facing layer comprises apertures having an open area of from about 2 mm2 to about 100 mm2.
    Type: Grant
    Filed: December 12, 2013
    Date of Patent: April 30, 2019
    Assignee: KCI USA, Inc.
    Inventors: William Pigg, Michelle Delbono, Sally Stephens
  • Publication number: 20170231821
    Abstract: A silver-containing tissue dressing for providing antimicrobial properties to a wound site is disclosed. In some embodiments, the tissue dressing may include a wound contact layer having a substrate material coated with a tacky hydrophobic silicone material, and silver-containing particles dispersed in the silicone material. The different surfaces of the substrate material may be coated with the silicone material having various amounts of tackiness. The silver material may provide antimicrobial properties when the tissue dressing is placed in contact with the wound site.
    Type: Application
    Filed: January 17, 2017
    Publication date: August 17, 2017
    Inventors: DEBORAH ADDISON, Rachel Hadley, Paul Garvey, Sally Stephens
  • Patent number: 9433534
    Abstract: A method of applying a patterned coating of a silicone adhesive to a substrate sheet, comprising the steps of pattern coating a silicone precursor composition onto the substrate, followed by thermally curing the precursor composition coated on the substrate. The precursor composition is a viscous fluid, and the pattern coating is performed by suitably modified block printing, intaglio printing or screen printing methods. Also provided are coated substrates obtainable by the methods of the invention, and wound dressings comprising such coated substrates.
    Type: Grant
    Filed: April 13, 2012
    Date of Patent: September 6, 2016
    Assignee: KCI USA, INC.
    Inventors: Deborah Addison, Sally Stephens, Risham Amjad, Patrick Brosnan, Gary Street, Ian Teet
  • Patent number: 9295749
    Abstract: A wound dressing product comprising: a substrate layer having an upper surface and a lower surface; a tacky silicone coating composition present on said upper surface and on said lower surface; and upper and lower release sheets covering said substrate and said tacky silicone coating composition on said upper and lower surfaces, respectively, and adhered to said surfaces by said tacky silicone coating composition, wherein said upper surface is less tacky than said lower surface whereby said upper release sheet can be removed from said upper surface more readily than said lower release sheet can be removed from said lower surface. The same silicone composition is used to form both the upper and the lower surface. Also provided are methods for making such dressings.
    Type: Grant
    Filed: August 22, 2011
    Date of Patent: March 29, 2016
    Assignee: KCI USA, Inc.
    Inventors: Deborah Addison, Sally Stephens, Rachel Hadley
  • Publication number: 20140058309
    Abstract: A method of making a wound dressing comprising the steps of: providing an apertured substrate layer; coating the substrate layer with a fluid silicone prepolymer composition; thermally partially curing said silicone prepolymer composition to form a partially cured silicone coating on the substrate; laminating the coated substrate layer to a base layer to form a laminate having said partially cured silicone coating in contact with a surface of the base layer; followed by exposing the laminate to ionizing radiation, to further cure the partially cured silicone coating and to bond the silicone coating to said surface of the base layer. The radiation cure results in strong bonding between the siliconized substrate and incompatible base layers such as polyurethane foams. Also provided are wound dressings obtainable by the process of the invention.
    Type: Application
    Filed: January 31, 2012
    Publication date: February 27, 2014
    Inventors: Deborah Addison, Sally Stephens, Patrick Joseph Brosnan
  • Publication number: 20130165837
    Abstract: A wound dressing product comprising: a substrate layer having an upper surface and a lower surface; a tacky silicone coating composition present on said upper surface and on said lower surface; and upper and lower release sheets covering said substrate and said tacky silicone coating composition on said upper and lower surfaces, respectively, and adhered to said surfaces by said tacky silicone coating composition, wherein said upper surface is less tacky than said lower surface whereby said upper release sheet can be removed from said upper surface more readily than said lower release sheet can be removed from said lower surface. The same silicone composition is used to form both the upper and the lower surface. Also provided are methods for making such dressings.
    Type: Application
    Filed: August 22, 2011
    Publication date: June 27, 2013
    Applicant: SYSTAGENIX WOUND MANAGEMENT IP. CO. B.V.
    Inventors: Deborah Addison, Sally Stephens, Rachel Hadley
  • 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