Patents by Inventor Silvan Benz

Silvan Benz 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).

  • Dental filling material
    Patent number: 8106109
    Abstract: The invention concerns a dental filling material with dual hardening mechanism, wherein i) a first hardening mechanism is based on a photocuring reaction, preferably a radical reaction, and ii) a second hardening mechanism is dependent on H2O as a reactant, especially as a ligand. Preferably, the second hardening mechanism is a gypsum-type reaction. Owing to the expansion of the composition an excellent marginal seal can be achieved, while the first hardening mechanism allows for a rapid cure on demand.
    Type: Grant
    Filed: May 12, 2008
    Date of Patent: January 31, 2012
    Assignee: Coltene Whaledent AG
    Inventors: Ralf Böhner, Dierk Lübbers, Silvan Benz
  • DENTAL COMPOSITE MATERIAL
    Publication number: 20090192240
    Abstract: The invention concerns hardenable dental composite materials, comprising i) non-agglomerated nanofillers having particle sizes of about 1 to about 50 nm; and ii) core-shell polymer particles with an elastic core compound, preferably having a modulus of elasticity of less than about 18 MPa, more preferably of less than 14 MPa, most preferably of less than about 10 MPa; and a substantially non-elastic shell compound.
    Type: Application
    Filed: January 29, 2008
    Publication date: July 30, 2009
    Applicant: COLTENE WHALEDENT AG
    Inventors: Silvan Benz, Ralf Bohner
  • DENTAL FILLING MATERIAL
    Publication number: 20090023115
    Abstract: The invention concerns a dental filling material with dual hardening mechanism, wherein i) a first hardening mechanism is based on a photocuring reaction, preferably a radical reaction, and ii) a second hardening mechanism is dependent on H2O as a reactant, especially as a ligand. Preferably, the second hardening mechanism is a gypsum-type reaction. Owing to the expansion of the composition an excellent marginal seal can be achieved, while the first hardening mechanism allows for a rapid cure on demand.
    Type: Application
    Filed: May 12, 2008
    Publication date: January 22, 2009
    Applicant: COLTENE WHALEDENT AG
    Inventors: Ralf BOHNER, Dierk LUBBERS, Silvan BENZ
  • Quick set silicone based dental impression materials
    Publication number: 20060281856
    Abstract: A silicone material, preferably a multi-component addition-cured silicon impression compound, of at least one organopolysiloxane with at least two unsaturated groups in the molecule; at least one organohydrogenpolysiloxane with at least three SiH groups in the molecule; at least one platinum catalyst and at least one filler.
    Type: Application
    Filed: June 9, 2006
    Publication date: December 14, 2006
    Inventors: Ralf Kollefrath, Silvan Benz