Patents by Inventor Kurt Grabher

Kurt Grabher 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).

  • Polymerizable composite material
    Patent number: 6353039
    Abstract: A composite material is described which contains polymerizable monomers plus a special transparent glass having high release of calcium ions and fluorine ions and, because of this release property and in particular of its optical properties, can be used as a restoration material in dentistry.
    Type: Grant
    Filed: December 11, 1998
    Date of Patent: March 5, 2002
    Assignee: Ivoclar AG
    Inventors: Volker Rheinberger, Ulrich Salz, Wolfram Höland, André Rumphorst, Kurt Grabher, Urs Karl Fischer, Marcel Schweiger, Norbert Moszner
  • Ion-releasing composite material
    Patent number: 6180688
    Abstract: The invention relates to ion-releasing composite materials on the basis of polymerizable monomers. The material is characterized in that it contains one or more non-acid, non-ionic, hydrophilic crosslinker monomers, one or more non-acid, non-ionic, hydrophilic dilution monomers having a viscosity of ≦1 Pas and at least one ion-releasing filler. The materials are suitable in particular for use as dental materials.
    Type: Grant
    Filed: December 11, 1998
    Date of Patent: January 30, 2001
    Assignee: Ivoclar AG
    Inventors: Volker Rheinberger, Ulrich Salz, Andr{acute over (e)} Rumphorst, Kurt Grabher, Urs Karl Fischer, Norbert Moszner
  • Polymerizable dental materials
    Patent number: 5354785
    Abstract: Polymerizable dental materials, suitable as underfilling material, comprising at least one polymerizable monomer or prepolymer, a setting catalyst and inorganic fillers comprise as filler, a glass powder comprising of 40-75 wt-% CaO, 5-30 wt-% B.sub.2 O.sub.3 and 5-35 wt-% SiO.sub.2.
    Type: Grant
    Filed: November 2, 1992
    Date of Patent: October 11, 1994
    Assignee: Ivoclar A.G.
    Inventors: Volker Rheinberger, Ulrich Salz, Kurt Grabher