Patents by Inventor Stefan Areskoug

Stefan Areskoug 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: 10143595
    Abstract: A method of producing a hydrophilic polyurethane foam structure containing inert activated carbon particles, includes the steps of: (a) providing a water phase containing a surfactant and dispersed inert particles; (b) providing a isocyanate-terminated polyether having functionality of more than 2; (c) mixing the water phase and the isocyanate-terminated polyether, immediately transferring the resulting mixture to a mold or a continuous web, whereby a foam structure is obtained; and (d) drying the foam structure until it has a moisture content of at most 10% (wt). A foam structure produced by the method and a wound dressing containing the foam structure are also disclosed.
    Type: Grant
    Filed: February 18, 2008
    Date of Patent: December 4, 2018
    Assignee: MÖLNLYCKE HEALTH CARE AB
    Inventors: Stefan Areskoug, Malin Prydz, Magnus Nolmark
  • Patent number: 10111959
    Abstract: The present invention pertains to antimicrobial compositions comprising inter alia at least one alkenyl- and/or alkynyl-substituted polysiloxane, at least one polysiloxane comprising silicon-bonded hydrogen atoms, and at least one hydrosilylation catalyst, as well as antimicrobial silicone gels, wound dressings, and methods of preparing the above.
    Type: Grant
    Filed: November 3, 2016
    Date of Patent: October 30, 2018
    Assignee: MÖLNLYCKE HEALTH CARE AB
    Inventors: Peter Löwenhielm, Malin Holmén, Dennis Hansson, Sofia Bergstrand, Stefan Areskoug
  • Publication number: 20170080090
    Abstract: The present invention pertains to antimicrobial compositions comprising inter alia at least one alkenyl- and/or alkynyl-substituted polysiloxane, at least one polysiloxane comprising silicon-bonded hydrogen atoms, and at least one hydrosilylation catalyst, as well as antimicrobial silicone gels, wound dressings, and methods of preparing the above.
    Type: Application
    Filed: November 3, 2016
    Publication date: March 23, 2017
    Inventors: Peter Löwenhielm, Malin Holmén, Dennis Hansson, Sofia Bergstrand, Stefan Areskoug
  • Patent number: 9492549
    Abstract: The present invention pertains to antimicrobial compositions comprising inter alia at least one alkenyl- and/or alkynyl-substituted polysiloxane, at least one polysiloxane comprising silicon-bonded hydrogen atoms, and at least one hydrosilylation catalyst, as well as antimicrobial silicone gels, wound dressings, and methods of preparing the above.
    Type: Grant
    Filed: April 13, 2011
    Date of Patent: November 15, 2016
    Assignee: Mölnlycke Health Care AB
    Inventors: Peter Löwenhielm, Malin Holmén, Dennis Hansson, Sofia Bergstrand, Stefan Areskoug
  • Publication number: 20130101633
    Abstract: The present invention pertains to antimicrobial compositions comprising inter alia at least one alkenyl-and/or alkynyl-substituted polysiloxane, at least one polysiloxane comprising silicon-bonded hydrogen atoms, and at least one hydrosilylation catalyst, as well as antimicrobial silicone gels, wound dressings, and methods of preparing the above.
    Type: Application
    Filed: April 13, 2011
    Publication date: April 25, 2013
    Applicant: MOLNLYCKE HEALTH CARE AB
    Inventors: Peter Löwenhielm, Malin Holmén, Dennis Hansson, Sofia Bergstrand, Stefan Areskoug
  • Patent number: 8263100
    Abstract: A method of producing a hydrophilic polyurethane foam structure containing a silver salt, chosen from the group of silver sulphate, silver citrate, silver acetate, silver carbonate, silver lactate and silver phosphate, or a mixture of these salts includes the steps of (a) providing a water phase containing a surfactant, and at least one silver salt, wherein the at least one silver salt is dispersed in the water phase; (b) providing a isocyanate-terminated polyether having functionality of more than (2); (c) mixing the water phase and the isocyanate-terminated polyether, immediately transferring the resulting mixture to a mould whereby a foam structure is obtained; and (d) drying the foam structure until it has a moisture content of at most 10% (wt). The hydrophilic polyurethane foam structure produced by the method and a wound dressing containing the foam structure are also described.
    Type: Grant
    Filed: February 13, 2008
    Date of Patent: September 11, 2012
    Assignee: Mölnlycke Health Care AB
    Inventors: Stefan Areskoug, Ulf Johannison, Malin Prydz
  • Publication number: 20100286584
    Abstract: A method of producing a hydrophilic polyurethane foam structure containing inert activated carbon particles, includes the steps of: (a) providing a water phase containing a surfactant and dispersed inert particles; (b) providing a isocyanate-terminated polyether having functionality of more than 2; (c) mixing the water phase and the isocyanate-terminated polyether, immediately transferring the resulting mixture to a mould or a continuous web, whereby a foam structure is obtained; and (d) drying the foam structure until it has a moisture content of at most 10% (wt). A foam structure produced by the method and a wound dressing containing the foam structure are also disclosed.
    Type: Application
    Filed: February 18, 2008
    Publication date: November 11, 2010
    Applicant: MOLNLYCKE HEALTH CARE AB
    Inventors: Stefan Areskoug, Malin Prydz, Magnus Nolmark
  • Publication number: 20100196501
    Abstract: A method of producing a hydrophilic polyurethane foam structure containing a silver salt, chosen from the group of silver sulphate, silver citrate, silver acetate, silver carbonate, silver lactate and silver phosphate, or a mixture of these salts includes the steps of (a) providing a water phase containing a surfactant, and at least one silver salt, wherein the at least one silver salt is dispersed in the water phase; (b) providing a isocyanate-terminated polyether having functionality of more than (2); (c) mixing the water phase and the isocyanate-terminated polyether, immediately transferring the resulting mixture to a mould whereby a foam structure is obtained; and (d) drying the foam structure until it has a moisture content of at most 10% (wt). The hydrophilic polyurethane foam structure produced by the method and a wound dressing containing the foam structure are also described.
    Type: Application
    Filed: February 13, 2008
    Publication date: August 5, 2010
    Applicant: MOLNLYCKE HEALTH CARE AB
    Inventors: Stefan Areskoug, Ulf Johannison, Malin Prydz
  • Publication number: 20070141129
    Abstract: Wound care product which comprises a substance which inhibits the growth of bacteria in wounds. The invention is characterized by the fact that the substance is xylitol. The invention also relates to the use of xylitol in wound care products and to the use of xylitol for producing a composition which has a growth-inhibiting effect on bacteria in wounds. The invention furthermore relates to a method for manufacturing wound care products which contain xylitol.
    Type: Application
    Filed: December 16, 2004
    Publication date: June 21, 2007
    Inventors: Asa Melhus, Stefan Areskoug
  • Patent number: 6486378
    Abstract: A wound dressing includes an hydrophilic foam layer which is coated with a liquid-permeabe adhesive layer on one side. The dressing includes an absorbent layer disposed on the foam layer on the side opposite to the adhesive coating, wherein absorbent layer is able to drain the foam layer through the action of capillary forces, and wherein the dressing further includes elements that ensure effective contact between the absorbent layer and the foam layer.
    Type: Grant
    Filed: December 7, 2001
    Date of Patent: November 26, 2002
    Assignee: Molnlycke Health Care AB
    Inventors: Stefan Areskoug, Bengt W. Lindquist, Staffan Kuuse
  • Patent number: 6479724
    Abstract: The present invention relates to a wound dressing that includes a carrier layer which is coated on one side with an adhesive elastomer (3). According to the invention, the carrier layer has the form of a laminate which consists of a plastic film (1) and a material (2) that has an irregular surface structure.
    Type: Grant
    Filed: January 18, 2001
    Date of Patent: November 12, 2002
    Assignee: Molnlycke Health Care AB
    Inventors: Stefan Areskoug, Bengt W. Lindquist
  • Patent number: 6247914
    Abstract: The invention relates to a method and to an apparatus for perforating a web of material intended to form an outer casing sheet of absorbent articles. As the web is advanced, the web is first provided with a large number of mutually separated cuts in the nip defined between raised plateaus on a matrix cylinder and circumferentially extending knife-edges of a cutting cylinder. The web is then deformed transversely to its plane at parts which border on each cut. The invention also relates to a perforated outer casing sheet which includes recesses in the form of mutually adjacent elongated channel-like grooves.
    Type: Grant
    Filed: June 30, 1997
    Date of Patent: June 19, 2001
    Assignee: SCA Hygiene Products AB
    Inventors: Bengt Lindquist, Stefan Areskoug, Anders Strålin
  • Patent number: 6207875
    Abstract: A wound dressing (1) comprising a layer of absorbent foam material (2) which includes a pattern of holes (4). The holes open out on that side of the foam material which lies proximal to the wearer's skin when the dressing (1) is worn, and the layer of foam material is coated with a layer (3) of skin-adhering hydrophobic gel, wherein those end parts of the walls of the holes in the foam material that lie proximal to the wearer's skin when the dressing is worn are gel coated. A method of producing such a dressing is also disclosed.
    Type: Grant
    Filed: December 15, 1999
    Date of Patent: March 27, 2001
    Assignee: Molnlycke Health Care AB
    Inventors: Bengt W. Lindqvist, Stefan Areskoug, Thomas Fabo
  • Patent number: 6051747
    Abstract: A wound dressing (1) comprising a layer of absorbent foam material (2) which includes a pattern of holes (4). The holes open out on that side of the foam material which lies proximal to the wearer's skin when the dressing (1) is worn, and the layer of foam material is coated with a layer (3) of skin-adhering hydrophobic gel, wherein those end parts of the walls of the holes in the foam material that lie proximal to the wearer's skin when the dressing is worn are gel coated. A method of producing such a dressing is also disclosed.
    Type: Grant
    Filed: January 6, 1998
    Date of Patent: April 18, 2000
    Assignee: Molnlycke Health Care AB
    Inventors: Bengt W. Lindqvist, Stefan Areskoug, Thomas Fabo
  • Patent number: 5728082
    Abstract: The invention relates to an absorbent body for use in diapers or like articles. The invention is characterized in that the absorbent body includes a first layer of fluff, a first superabsorbent mixed in the fluff layer and having a high degree of cross-linking, and in that the absorbent body includes a second layer which contains a second superabsorbent having a higher liquid absorbency than the first superabsorbent.
    Type: Grant
    Filed: November 19, 1994
    Date of Patent: March 17, 1998
    Assignee: Molnlycke AB
    Inventors: Lars Gustafsson, Stefan Areskoug, Magnus Qvist