Patents by Inventor Klaus Rischka

Klaus Rischka 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).

  • Publication number: 20240065944
    Abstract: A dental material having at least one copolymer obtained by (I) copolymerizing one or more monomers MG having a polymerizable (meth)acrylate group, one or more OH group-containing (meth)acrylates MF, one or more strongly acidic adhesive monomers MH and optionally of one or more polymerizable carboxylic acid monomers MCS, (II) reacting the resulting copolymer A0 in a polymer-analogous reaction with a functionalized, radically polymerizable monomer MP, which reacts with the OH groups of the monomer MF in the polymer chain of A0 to form a copolymer AP having pendant polymerizable groups, and (III) neutralizing the copolymer Ap with a base. The material is particularly suitable as a dental adhesive.
    Type: Application
    Filed: August 28, 2023
    Publication date: February 29, 2024
    Inventors: Thomas Köhler, Michael Barbisch, Thorsten Bock, Andreas Hartwig, Klaus Rischka
  • Patent number: 10011825
    Abstract: The invention relates to a method for activating a surface by increasing the hydrophilicity and/or for binding target structures, particularly selected from the group consisting of proteins, cellular proteins, proteins, cells, carbohydrates, peptides and amino acids. It also relates to the use of an oxidoreductase for activating a surface for the mentioned bonds and to corresponding activated surfaces.
    Type: Grant
    Filed: June 14, 2013
    Date of Patent: July 3, 2018
    Assignee: FRAUNHOFER-GESELLSCHAFT ZUR FOERDERUNG DER AGNEWANDTEN FORSCHUNG E.V.
    Inventors: Michael Szardenings, Klaus Rischka, Ingo Grunwald, Annika Eisenschmidt
  • Publication number: 20160130484
    Abstract: The present invention primarily relates to a multicomponent adhesive for producing an adhesive hydrogel, comprising the compound defined below of the formula (I) and one, two, three, four or more further constituents. The invention further relates to the use of said multicomponent adhesive and corresponding methods for gluing two surfaces together. The present invention further relates to a method for producing a corresponding adhesive hydrogel. The invention also relates to a kit comprising a corresponding multicomponent adhesive and one or more further constituents. The invention also relates to articles which comprise a multicomponent adhesive according to the invention or an adhesive hydrogel produced therefrom.
    Type: Application
    Filed: February 21, 2014
    Publication date: May 12, 2016
    Inventors: Klaus Rischka, Robert Sader, Hendrik Bargel, Maria Kozielec
  • Patent number: 9193986
    Abstract: Method for marking a target structure, comprising the following steps: a) providing a compound V that includes at least one dihydroxy- or trihydroxyphenyl group, b) providing a means for converting the dihydroxy- or trihydroxyphenyl group to a quinone group, c) providing a target structure, d) oxidizing the dihydroxy- or trihydroxyphenyl group of the compound V to the quinone group, and e) contacting the compound V with the target structure, so that a covalent bond can be formed, wherein in step e) the compound V is used in a concentration such that the maximum concentration of dihydroxy-, trihydroxyphenyl groups and quinone groups that are introduced by the compound V is ?500 ?M, preferably ?300 ?M, and more preferably ?100 ?M.
    Type: Grant
    Filed: September 13, 2013
    Date of Patent: November 24, 2015
    Assignee: FRAUNHOFER-GESELLSCHAFT ZUR FORDERUNG DER ANGEWANDTEN FORSCHUNG E.V.
    Inventors: Michael Szardenings, Ingo Grunwald, Klaus Rischka, Katharina Richter
  • Publication number: 20150159150
    Abstract: The invention relates to a method for activating a surface by increasing the hydrophilicity and/or for binding target structures, particularly selected from the group consisting of proteins, cellular proteins, proteins, cells, carbohydrates, peptides and amino acids. It also relates to the use of an oxidoreductase for activating a surface for the mentioned bonds and to corresponding activated surfaces.
    Type: Application
    Filed: June 14, 2013
    Publication date: June 11, 2015
    Inventors: Michael Szardenings, Klaus Rischka, Ingo Grunwald, Annika Eisenschmidt
  • Publication number: 20140162303
    Abstract: Method for marking a target structure, comprising the following steps: a) providing a compound V that includes at least one dihydroxy- or trihydroxyphenyl group, b) providing a means for converting the dihydroxy- or trihydroxyphenyl group to a quinone group, c) providing a target structure, d) oxidising the dihydroxy- or trihydroxyphenyl group of the compound V to the quinone group, and e) contacting the compound V with the target structure, so that a covalent bond can be formed, wherein in step e) the compound V is used in a concentration such that the maximum concentration of dihydroxy-, trihydroxyphenyl groups and quinone groups that are introduced by the compound V is ?500 ?M, preferably ?300 ?M, and more preferably ?100 ?M.
    Type: Application
    Filed: September 13, 2013
    Publication date: June 12, 2014
    Inventors: Michael Szardenings, Ingo Grunwald, Klaus Rischka, Katharina Richter
  • Patent number: 7981313
    Abstract: The use of hydrophobins for preventing the formation of ice on surfaces, especially for the prevention of ice formation on aircraft surfaces.
    Type: Grant
    Filed: August 12, 2010
    Date of Patent: July 19, 2011
    Assignee: BASF SE
    Inventors: Ulf Baus, Thorsten Montag, Thomas Subkowski, Claus Bollschweiler, Ingo Grunwald, Klaus Rischka
  • Publication number: 20110017943
    Abstract: The use of hydrophobins for preventing the formation of ice on surfaces, especially for the prevention of ice formation on aircraft surfaces.
    Type: Application
    Filed: August 12, 2010
    Publication date: January 27, 2011
    Applicant: BASF SE
    Inventors: Ulf Baus, Thorsten Montag, Thomas Subkowski, Claus Bollschweiler, Ingo Grunwald, Klaus Rischka