Patents by Inventor Gunter Tovar

Gunter Tovar 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: 20100120145
    Abstract: The invention relates to a cell culture system comprising a three-dimensional, biocompatible frame structure and biocompatible nanoparticles, a method for the cultivation of cells, and the preparation of cells or cell products and tissues per se by means of such a cell culture system.
    Type: Application
    Filed: April 18, 2008
    Publication date: May 13, 2010
    Applicant: Fraunhofer-Gresellschaft Zur Forderung Der Angewandten Forschung E.V.
    Inventors: Herwig Brunner, Heike Mertsching, Petra Kluger, Michaela Kaufmann, Achim Weber, Gunter Tovar, Kirsten Borchers
  • Patent number: 7368295
    Abstract: The present invention relates to nanoparticles with tumor necrosis factor (TNF) or cytokine immobilized thereon, where TNF or the cytokine is preferably immobilized in the form of a trimer in directed fashion and with retention of its biological activity on the carrier, to methods for the directed immobilization of TNF or cytokine on nanoparticles, to the use of the nanoparticles having immobilized TNF or cytokine for the identification and/or isolation of cytokine- or TNF-binding partners and for the identification and/or isolation of inhibitors of the interaction between TNF or cytokine and its binding partners, to the use of such nanoparticles for preparing a pharmaceutical composition, in particular for the therapy of tumors, and to pharmaceutical and diagnostic compositions which comprise such nanoparticles.
    Type: Grant
    Filed: August 16, 2002
    Date of Patent: May 6, 2008
    Assignee: Fraunhofer-Gesellschaft zur Foderung der Angewandten Forschung E.V.
    Inventors: Günter Tovar, Thomas Schiestel, Herwig Brunner, Klaus Pfizenmaier, Matthias Grell, Peter Scheurich, Angela Hammer
  • Publication number: 20080044830
    Abstract: The invention relates to functional elements that comprise, disposed on a support, microstructures containing biofunctionalized nanoparticles, methods for producing these functional elements and use of the same.
    Type: Application
    Filed: December 2, 2005
    Publication date: February 21, 2008
    Applicants: Fraunhofer-Gesellschaft zur Forderung der Angewandten Forschung E.V., Universitat Stuttgart
    Inventors: Gunter Tovar, Herwig Brunner, Achim Weber, Kirsten Borchers
  • Patent number: 7202472
    Abstract: The present invention relates to an improved method for mass spectrometric analysis, in particular for matrix-assisted laser desorption/ionization time-of-flight mass spectrometry (MALDI-TOF MS) using nanoparticles, where an analyte is added to a nanoparticle suspension, and the suspension containing the bound analyte is then deposited directly on a MALDI sample carrier and investigated by mass spectrometry, and to nanoparticles suitable for this method.
    Type: Grant
    Filed: August 16, 2002
    Date of Patent: April 10, 2007
    Assignee: Fraunhofer-Gesellschaft zur Forderung der Angewandten Forschung e.V.
    Inventors: Jürgen Schmucker, Thomas Schiestel, Herwig Brunner, Günter Tovar
  • Publication number: 20050048570
    Abstract: The present invention relates to functional elements that comprise microstructures containing biofunctionalized nanoparticles arranged on a carrier, a method for the production of these functional elements and the use thereof.
    Type: Application
    Filed: December 27, 2002
    Publication date: March 3, 2005
    Inventors: Achim Weber, Thomas Schiestel, Gunter Tovar, Herwig Brunner, Steffen Rupp, Nicole Hauser
  • Publication number: 20050037516
    Abstract: The present invention relates to an improved method for mass spectrometric analysis, in particular for matrix-assisted laser desorption/ionization time-of-flight mass spectrometry (MALDI-TOF MS) using nanoparticles, where an analyte is added to a nanoparticle suspension, and the suspension containing the bound analyte is then deposited directly on a MALDI sample carrier and investigated by mass spectrometry, and to nanoparticles suitable for this method.
    Type: Application
    Filed: August 16, 2002
    Publication date: February 17, 2005
    Inventors: Jurgen Schmucker, Thomas Schiestel, Herwig Brunner, Gunter Tovar
  • Publication number: 20040265392
    Abstract: The present invention relates to nanoparticles with tumor necrosis factor (TNF) or cytokine immobilized thereon, where TNF or the cytokine is preferably immobilized in the form of a trimer in directed fashion and with retention of its biological activity on the carrier, to methods for the directed immobilization of TNF or cytokine on nanoparticles, to the use of the nanoparticles having immobilized TNF or cytokine for the identification and/or isolation of cytokine- or TNF-binding partners and for the identification and/or isolation of inhibitors of the interaction between TNF or cytokine and its binding partners, to the use of such nanoparticles for preparing a pharmaceutical composition, in particular for the therapy of tumors, and to pharmaceutical and diagnostic compositions which comprise such nanoparticles.
    Type: Application
    Filed: May 21, 2004
    Publication date: December 30, 2004
    Inventors: Gunter Tovar, Thomas Schiestel, Herwig Brunner, Klaus Pfizenmaier, Mattias Grell, Peter Scheurich, Angela Hammer
  • Patent number: 6358474
    Abstract: An apparatus for isolating cell material from a tissue system and/or a liquid includes (1) a vessel open at the top, into which the cell material to be isolated can be introduced in the tissue system and/or the liquid; and (2) a separating device having a stamp-shaped configuration and including a flat separating disk having a peripheral edge fitting with the inner walls of the vessel in a fluid-tight manner and presenting at least one passage opening which is covered by a filter membrane, and which device can be inserted from the top into the vessel. The isolating disk pressurises the cell material inclusive of the tissue system and/or the liquid and acts thereupon with shearing forces by rotation. The cells and/or cell systems pass through the pores of the filter membrane whereas the residual tissue material is retained.
    Type: Grant
    Filed: April 26, 2000
    Date of Patent: March 19, 2002
    Assignee: Fraunhofer Gesellschaft zur Förderung der Angewandten Forschung E.V.
    Inventors: Hannes Dobler, Claus Kuhn, Hans Lindner, Stefan Kiesewetter, Jürgen Bernhagen, Gabriele Tolle, Günter Tovar