Patents by Inventor Andr{acute over (e)} Rumphorst

Andr{acute over (e)} Rumphorst 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).

  • 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