Patents by Inventor Nils Fontein

Nils Fontein 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).

  • Patent number: 10603143
    Abstract: A dental milling blank for the production of permanent indirect restorations in the CAD/CAM process, characterized in that it has a water sorption WSP of less than/equal to 18 ?g/mm3, measured according to ISO 4049 and an E modulus E greater than/equal to 13 GPa, measured according to the ADA specification No. 27 and a quotient Q of WSP/E of less than 1.35 ?g/(GPa×mm3) and consists of the polymerization product of a radically curable dental composition, which comprises a) inorganic fillers, wherein the total mass of the inorganic fillers is at least 83 wt. %, based on the total mass of the composition, b) radically polymerizable monomers, c) one or more initiators for radically curing.
    Type: Grant
    Filed: February 15, 2018
    Date of Patent: March 31, 2020
    Assignee: VOCO GMBH
    Inventors: Daniel Oldenburger, Reinhard Maletz, Nils Fontein, Manfred Thomas Plaumann
  • Publication number: 20180271629
    Abstract: Described is a milling blank for producing an indirect dental restoration, composed of resin or a resin-based composite, containing water in an amount of at least 25% of the water sorption Wsp. Described is further a method for producing such a milling blank or a moulded part produced therefrom for use as an indirect dental restoration, a use of the water sorption method, a kit for producing indirect dental restorations and a method for indirect dental restoration.
    Type: Application
    Filed: March 14, 2018
    Publication date: September 27, 2018
    Applicant: VOCO GmbH
    Inventors: Reinhard MALETZ, Nils Fontein, Daniel Oldenburger, Manfred Thomas Plaumann
  • Publication number: 20180228580
    Abstract: A dental milling blank for the production of permanent indirect restorations in the CAD/CAM process, characterized in that it has a water sorption WSP of less than/equal to 18 ?g/mm3, measured according to ISO 4049 and an E modulus E greater than/equal to 13 GPa, measured according to the ADA specification No. 27 and a quotient Q of WSP/E of less than 1.35 ?g/(GPa×mm3) and consists of the polymerization product of a radically curable dental composition, which comprises a) inorganic fillers, wherein the total mass of the inorganic fillers is at least 83 wt. %, based on the total mass of the composition, b) radically polymerizable monomers, c) one or more initiators for radically curing.
    Type: Application
    Filed: February 15, 2018
    Publication date: August 16, 2018
    Applicant: VOCO GmbH
    Inventors: Daniel Oldenburger, Reinhard Maletz, Nils Fontein, Manfred Thomas Plaumann
  • Patent number: 9839585
    Abstract: The present invention relates to novel free-radically curable dental compositions, comprising chain-like and/or cyclic and/or cage-type polysiloxanes substituted by free-radically polymerizable groups and having at least 3 silicon atoms and/or mixed forms thereof, disiloxanes substituted by free-radically polymerizable groups, optionally one, two, three or more free-radically curable dental monomers having no silicon atom, fillers, initiators and/or catalysts for free-radical polymerization, and also further customary additives, to the cured dental products formed from the dental compositions of the invention, and to the respective use thereof as dental material, especially as flowable filling composites (called “flow materials”), core buildup materials and luting cements. The invention further relates to a method for producing the dental compositions and to a process for producing a respective dental product.
    Type: Grant
    Filed: November 10, 2015
    Date of Patent: December 12, 2017
    Assignee: VOCO GmbH
    Inventors: Nils Fontein, Gerrit Luebbe, Manfred Thomas Plaumann
  • Patent number: 9795541
    Abstract: The present invention relates to the use of free-radically curable compositions, comprising chain-like and/or cyclic and/or cage-type polysiloxanes substituted by free-radically polymerizable groups and having at least 3 silicon atoms and/or mixed forms thereof, disiloxanes substituted by free-radically polymerizable groups, optionally one, two, three or more free-radically curable monomers having no silicon atom, fillers, initiators and/or catalysts for free-radical polymerization, and also further customary additives, in additive manufacturing methods, preferably in stereolithography (SL) and digital light processing (DLP). The present invention further relates to the use of the cured free-radically curable compositions, preferably for production of dental products.
    Type: Grant
    Filed: November 10, 2015
    Date of Patent: October 24, 2017
    Assignee: VOCO GmbH
    Inventors: Nils Fontein, Gerrit Luebbe, Daniel Oldenburger, Manfred Thomas Plaumann
  • Publication number: 20160128909
    Abstract: The present invention relates to the use of free-radically curable compositions, comprising chain-like and/or cyclic and/or cage-type polysiloxanes substituted by free-radically polymerizable groups and having at least 3 silicon atoms and/or mixed forms thereof, disiloxanes substituted by free-radically polymerizable groups, optionally one, two, three or more free-radically curable monomers having no silicon atom, fillers, initiators and/or catalysts for free-radical polymerization, and also further customary additives, in additive manufacturing methods, preferably in stereolithography (SL) and digital light processing (DLP). The present invention further relates to the use of the cured free-radically curable compositions, preferably for production of dental products.
    Type: Application
    Filed: November 10, 2015
    Publication date: May 12, 2016
    Inventors: Nils Fontein, Gerrit Luebbe, Daniel Oldenburger, Manfred Thomas Plaumann
  • Publication number: 20160128911
    Abstract: The present invention relates to novel free-radically curable dental compositions, comprising chain-like and/or cyclic and/or cage-type polysiloxanes substituted by free-radically polymerizable groups and having at least 3 silicon atoms and/or mixed forms thereof, disiloxanes substituted by free-radically polymerizable groups, optionally one, two, three or more free-radically curable dental monomers having no silicon atom, fillers, initiators and/or catalysts for free-radical polymerization, and also further customary additives, to the cured dental products formed from the dental compositions of the invention, and to the respective use thereof as dental material, especially as flowable filling composites (called “flow materials”), core buildup materials and luting cements. The invention further relates to a method for producing the dental compositions and to a process for producing a respective dental product.
    Type: Application
    Filed: November 10, 2015
    Publication date: May 12, 2016
    Inventors: Nils Fontein, Gerrit Luebbe, Manfred Thomas Plaumann
  • Patent number: 9314408
    Abstract: The present invention relates to dental polymerizable composite materials (curable dental compositions) comprising one or more plasticizers comprising a tricyclic structural element, to dental materials (polymers), obtainable by curing from the dental polymerizable composite materials comprising one or more plasticizers comprising a tricyclic structural element, to processes for producing a dental material and to dental curable composite materials for use in a therapeutic method in the production of a dental material.
    Type: Grant
    Filed: February 1, 2013
    Date of Patent: April 19, 2016
    Assignee: Voco GmbH
    Inventors: Tobias Blomker, Nils Fontein, Manfred Stepputtis, Manfred Thomas Plaumann
  • Patent number: 9079828
    Abstract: Novel polymerizable compounds comprising a polyalicyclic structure element and certain functional groups, mixtures comprising one or a plurality of these compounds and corresponding curable blends and products as well as their respective use as dental material or for the preparation of a dental material are described. A method for preparing these compounds or mixtures and a method for preparing a product, preferably a product suitable for dentistry, are also described.
    Type: Grant
    Filed: September 29, 2011
    Date of Patent: July 14, 2015
    Assignee: VOCO GmbH
    Inventors: Tobias Blömker, Manfred Stepputtis, Manfred Thomas Plaumann, Reinhard Maletz, Nils Fontein
  • Patent number: 8915736
    Abstract: A curable dental composition comprising a monomer with a polyalicyclic structure element that can be used for filling and/or sealing of a root canal is described. Also described is a composition useful as a dental material and a method for preparing such a composition. New polymerizable monomers comprising at least one polyalicyclic structure element and certain ethylenic structure elements, which are particularly suitable for use in a dental composition, and the use of the new monomers in a dental composition are also described.
    Type: Grant
    Filed: September 29, 2011
    Date of Patent: December 23, 2014
    Assignee: Voco GmbH
    Inventors: Tobias Blömker, Manfred Stepputtis, Reinhard Maletz, Manfred Thomas Plaumann, Nils Fontein
  • Publication number: 20120082959
    Abstract: Novel polymerizable compounds comprising a polyalicyclic structure element and certain functional groups, mixtures comprising one or a plurality of these compounds and corresponding curable blends and products as well as their respective use as dental material or for the preparation of a dental material are described. A method for preparing these compounds or mixtures and a method for preparing a product, preferably a product suitable for dentistry, are also described.
    Type: Application
    Filed: September 29, 2011
    Publication date: April 5, 2012
    Applicant: VOCO GmbH
    Inventors: Tobias Blömker, Manfred Stepputtis, Manfred Thomas Plaumann, Reinhard Maletz, Nils Fontein
  • Publication number: 20120082954
    Abstract: A curable dental composition comprising a monomer with a polyalicyclic structure element that can be used for filling and/or sealing of a root canal is described. Also described is a composition useful as a dental material and a method for preparing such a composition. New polymerizable monomers comprising at least one polyalicyclic structure element and certain ethylenic structure elements, which are particularly suitable for use in a dental composition, and the use of the new monomers in a dental composition are also described.
    Type: Application
    Filed: September 29, 2011
    Publication date: April 5, 2012
    Applicant: VOCO GmbH
    Inventors: Tobias Blömker, Manfred Stepputtis, Reinhard Maletz, Manfred Thomas Plaumann, Nils Fontein