Patents by Inventor Gunther Sachau

Gunther Sachau 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: 6822132
    Abstract: A dressing especially for covering wounds or preventing or treating blisters, comprising a water vapor pervious carrier film uniformly covered with an adhesive layer, wherein there is centrally disposed on the adhesive layer a water vapor pervious polyurethane matrix which is beveled from an especially central point to the edge of the adhesive layer, although the periphery of the adhesive layer is at least partially not covered by the polyurethane matrix.
    Type: Grant
    Filed: September 13, 2001
    Date of Patent: November 23, 2004
    Assignee: Beiersdorf AG
    Inventors: Helge Ahrens, Carsten Hartkopf, Jochen Kenndoff, Ulrich Köhler, Dirk Lenz, Robert Mayan, Günther Sachau, Ingrid Wesselkamp
  • Patent number: 6616793
    Abstract: A process for producing multilayered thin plasters with a carrier material based on polyurethane with the steps of applying at least one layer of uncured polyurethane to a transfer layer, applying an adhesive composition to a release layer, laminating the uncured polyurethane on the transfer layer and the adhesive composition on the release layer together using a doctor blade, passing the laminate through nip rolls downstream of the doctor blade, and rolled out the uncured polyurethane and adhesive composition to the ultimate thickness.
    Type: Grant
    Filed: September 20, 2001
    Date of Patent: September 9, 2003
    Assignee: Beiersdorf AG
    Inventors: Holger Kartheus, Andreas Beckmann, Jürgen Christian Quandt, Klaus Ruhnau, Günther Sachau, Thomas Möller
  • Publication number: 20020160037
    Abstract: A wound dressing comprising a moisture vapor pervious polyurethane matrix beveled from an especially central point of the wound dressing toward the edge.
    Type: Application
    Filed: September 19, 2001
    Publication date: October 31, 2002
    Inventors: Helge Ahrens, Michael Schink, Jochen Kenndoff, Gunther Sachau, Reiner Leutz
  • Publication number: 20020156411
    Abstract: A dressing especially for covering wounds or preventing or treating blisters, comprising a water vapor pervious carrier film uniformly covered with an adhesive layer, wherein there is centrally disposed on the adhesive layer a water vapor pervious polyurethane matrix which is beveled from an especially central point to the edge of the adhesive layer, although the periphery of the adhesive layer is at least partially not covered by the polyurethane matrix.
    Type: Application
    Filed: September 13, 2001
    Publication date: October 24, 2002
    Applicant: Beiersdorf Aktiengesellschaft
    Inventors: Helge Ahrens, Carsten Hartkopf, Jochen Kenndoff, Ulrich Kohler, Dirk Lenz, Robert Mayan, Gunther Sachau, Ingrid Wesselkamp
  • Publication number: 20020104610
    Abstract: A process for producing multilayered thin plasters comprising a carrier material based on polyurethane comprises
    Type: Application
    Filed: September 20, 2001
    Publication date: August 8, 2002
    Inventors: Holger Kartheus, Andreas Beckmann, Jurgen Christian Quandt, Klaus Ruhnau, Gunther Sachau, Thomas Moller
  • Patent number: 6191216
    Abstract: The invention relates to improved hydrophilic, polyurethane gel substances and foams, the use of polyurethane gel substances for pressure-distributing, in particular self-adhesive polyurethane-(foam) gels, and the use of said polyurethane gel substances for moulded structures and adhesive coatings.
    Type: Grant
    Filed: November 3, 1998
    Date of Patent: February 20, 2001
    Assignee: Bayer A.G.
    Inventors: Otto Ganster, Jörg Büchner, Jochen Werner Kenndoff, Günther Sachau
  • Patent number: 5844013
    Abstract: Hydrophilic polyurethane gel foams are obtainable from a polyurethane gel defined in the description, from a water-absorbing material and from a non-aqueous foaming agent and can be used in medicine, in particular for the management of deep wounds and wound cavities. Wound dressings are obtainable with a polyurethane sheet as backing and a polyurethane gel foam composed of a polyurethane gel defined in the description, of a water-absorbing material and of a non-aqueous foaming agent.
    Type: Grant
    Filed: May 30, 1995
    Date of Patent: December 1, 1998
    Assignee: Beiersdorf AG
    Inventors: Jochen Kenndoff, Vadim Lenuck, Gunther Sachau
  • Patent number: 5147344
    Abstract: Hydrogel foamsa) based on gelatin and water,b) optionally containing polyvinyl alcohol,c) containing a crosslinking agent selected from the group comprisingca) the compounds of at least trivalent metals or semimetals, for example boric acid, borates, aluminium salts, titanates and alkyl titanates, and/or from the group comprisingcb) organic and/or inorganic acids and/or salts thereof, for example gallic acid, gallates, phosphoric acids, phosphates, dihydroxybenzoic acid and dihydroxybenzoates,d) and optionally containing organic plasticizers, and/or auxiliary agents and/or additives.
    Type: Grant
    Filed: March 5, 1991
    Date of Patent: September 15, 1992
    Assignee: Beiersdorf Aktiengesellschaft
    Inventors: Gunther Sachau, Katrin Borgschulte, Hanns Pietsch
  • Patent number: 4996054
    Abstract: An antithrombogenic, non-calcifying, and elastic material on a basis of polyurethane, characterized by the addition of fatty-acid esters and optionally by the further addition of cross-linking agents that react with water.
    Type: Grant
    Filed: October 19, 1988
    Date of Patent: February 26, 1991
    Assignee: Beiersdorf Aktiengesellschaft
    Inventors: Hanns Pietsch, Holger Kartheus, Hans-Joachim Holtzmann, Gunther Sachau, Helmut Reul
  • Patent number: 4831065
    Abstract: An antithrombogenic, non-calcifying, and elastic material on a basis of polyurethane, characterized by the addition of fatty-acid esters and optionally by the further addition of cross-linking agent that react with water.
    Type: Grant
    Filed: November 20, 1986
    Date of Patent: May 16, 1989
    Assignee: Beiersdorf Aktiengesellschaft
    Inventors: Hanns Pietsch, Holger Kartheus, Hans-Joachim Holtzmann, Gunther Sachau, Helmut Reul
  • Patent number: 4778461
    Abstract: A heart valve prosthesis for replacing the aortic valve or the pulmonary valve, consisting of a support ring with at least two commissure supports in each case and flexible cusps, is characterized in that the height of the support ring including the commissure supports is less than the total height of the heart valve prosthesis.
    Type: Grant
    Filed: November 17, 1986
    Date of Patent: October 18, 1988
    Assignee: Beiersdorf AG
    Inventors: Hanns Pietsch, Holger Kartheus, Hans-Joachim Holtzmann, Gunther Sachau, Helmut Reul
  • Patent number: 4221214
    Abstract: A bandage for forming a stiffening or supporting cast comprising a carrier material and a composition thereon. The material includes a gas permeable flexible fabric-like base of the usual kind. The composition comprises (a) 55-97% by weight of gypsum, burnt, (b) 1-30%, preferably 3-30%, by weight of a highly crosslinked, finely dispersed poly-vinyl ester powder, which powder is more than 50% insoluble in ethyl-acetate, and (c) 0-12%, preferably 3-12%, by weight of a light weight cellular or porous filler having a bulk density of up to 0.1 g/cc.
    Type: Grant
    Filed: February 2, 1979
    Date of Patent: September 9, 1980
    Assignee: Biersdorf Aktiengesellschaft
    Inventors: Hanns Pietsch, Dietrich Schulte, Gunther Sachau, Jurgen C. Quandt