Patents by Inventor Karl-Heinz Renz

Karl-Heinz Renz 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: 20080132603
    Abstract: A polymerizable dental material formed of a liquid component containing A) at least one liquid methyl methacrylate monomer component, B) at least one acrylated or methacrylated butadiene oligomer or acrylated or methacrylated butadiene polymer and/or an acrylated or methacrylated acrylonitrile-butadiene oligomer or acrylated or methacrylated acrylonitrile-butadiene polymer, and optionally a powder component containing a polymer powder or a bead polymer based on methacrylate.
    Type: Application
    Filed: November 19, 2007
    Publication date: June 5, 2008
    Applicant: HERAEUS KULZER GMBH
    Inventors: KARL-HEINZ RENZ, NOVICA SAVIC, KEVIN KERSCHER
  • Patent number: 7368486
    Abstract: Dental materials with high abrasion resistance and their use for producing artificial teeth and/or their enamel or cutting areas are described. The materials primarily contain: (a) Monofunctional meth-/acrylates ?20-50% (b) Crosslinking meth-/acrylate ??1-20% (c) Splitter polymer from components (2) and (5) ??2-30% (d) PMMA-pearl polymers, partly crosslinked ??2-50% (e) Pyrogenic silicic acid, silanated ??0-20% (f) Inorganically fortified pearl polymer ??5-50% (g) Initiator components 0.1-1% (h) Coloring pigments 0.1-3%.
    Type: Grant
    Filed: July 29, 2004
    Date of Patent: May 6, 2008
    Assignee: Heraeus Kulzer GmbH & Co. KG
    Inventors: Albert Erdrich, Karl-Heinz Renz, Frank Uwe Stange, Novica Savic, Cornelia Hermann
  • Publication number: 20070287131
    Abstract: The present invention relates to a method for manufacturing dental prostheses according to a digitized virtual model which reflects the maximally situation, comprising the steps providing a data record that reflects the maxillary situation and relationship, digital modeling of the tooth, creating a divided negative mold (rapid manufacturing) from the data from the digital tooth modeling, insertion of the fabricated teeth into the opened negative mold, closing the negative mold, filling the remaining cavity with plastic for the prosthesis.
    Type: Application
    Filed: June 7, 2007
    Publication date: December 13, 2007
    Applicant: HERAEUS KULZER GMBH
    Inventors: KLAUS RUPPERT, KARL-HEINZ RENZ
  • Publication number: 20070264615
    Abstract: A dental kit made up of: A at least one pre-shaped dental crown made from a plastically deformable dental composite material curable by light, B a container impermeable to light, in which the pre-shaped dental crown is kept before it is applied to a tooth stump, C optionally a film which covers the outer surface of the pre-shaped dental crown.
    Type: Application
    Filed: May 9, 2006
    Publication date: November 15, 2007
    Applicant: Heraeus Kulzer GmbH
    Inventors: Klaus Ruppert, Karl-Heinz Renz, Novica Savic, Chris Holden, Frank Stange, Raquel Neumann
  • Publication number: 20070243500
    Abstract: Described is a method for producing a dental prosthesis, comprising the following steps: A Producing a model from a material which does not bond with the dental prosthesis material, B Fixing the teeth, C Filling the interspace between the artificial tooth/teeth and the model, wherein in step C melted thermoplastic material is applied in layers and after each layer is hardened by cooling.
    Type: Application
    Filed: April 12, 2007
    Publication date: October 18, 2007
    Applicant: HERAEUS KULZER GMBH
    Inventors: Frank Stange, Novica Savic, Karl-Heinz Renz
  • Publication number: 20060241204
    Abstract: The use of cyclic oligomeric butylene terephthalate (CBT™) for producing thermoplastic dental prostheses, or for producing starting materials for thermoplastic dental prostheses are described, in addition to starting materials containing CBT™ for producing thermoplastic dental prostheses, and a method for producing thermoplastic dental prostheses.
    Type: Application
    Filed: April 5, 2006
    Publication date: October 26, 2006
    Applicant: Heraeus Kulzer GmbH
    Inventor: Karl-Heinz Renz
  • Publication number: 20060217488
    Abstract: An autopolymerizing two-component prosthetic base material consisting of A) a liquid monomer component, B) a powdered filler-containing component containing at least one bead polymer modified by an elastic phase, which yields after curing a high-impact prosthetic plastic having a fracture toughness of ?2 MPa·m1/2 and a fracture work of ?900 J/m2.
    Type: Application
    Filed: March 17, 2006
    Publication date: September 28, 2006
    Applicant: Heraeus Kulzer GmbH
    Inventors: Karl-Heinz Renz, Frank Stange, Oliver Koschalka, Albert Erdrich, Andreas Grundler
  • Publication number: 20050220981
    Abstract: The invention relates to vitreous aroma particles and the preparation thereof, as well as to the use thereof in foods, consumer articles and pharmaceuticals.
    Type: Application
    Filed: April 26, 2003
    Publication date: October 6, 2005
    Inventors: Karl-Heinz Renz, Birgit Schleifenbaum, Jens Uhlemann, Fouad Saleeb
  • Publication number: 20050194409
    Abstract: Bicameral pressurized containers are suitable for the packing and dispensing of flowable highly viscous or flowable fibrous dental materials.
    Type: Application
    Filed: February 11, 2005
    Publication date: September 8, 2005
    Applicant: Heraeus Kulzer GmbH
    Inventors: Christian Bressler, Novica Savic, Karl-Heinz Renz
  • Patent number: 6902751
    Abstract: A method for producing carbohydrate-encapsulated flavorings whose surface has been treated with an inert gas, as well as carbo-hydrate-encapsulated flavorings and the use thereof in food products, consumer articles and pharmaceuticals.
    Type: Grant
    Filed: November 6, 2000
    Date of Patent: June 7, 2005
    Assignee: Symrise GmbH & Co. KG
    Inventors: Birgit Schleifenbaum, Jens Uhlemann, Karl-Heinz Renz
  • Publication number: 20050059751
    Abstract: Dental materials with high abrasion resistance and their use for producing artificial teeth and/or their enamel or cutting areas are described. The materials primarily contain: (a) Monofunctional meth-/acrylates ?20-50% (b) Crosslinking meth-/acrylate ??1-20% (c) Splitter polymer from components (2) and (5) ??2-30% (d) PMMA-pearl polymers, partly crosslinked ??2-50% (e) Pyrogenic silicic acid, silanated ??0-20% (f) Inorganically fortified pearl polymer ??5-50% (g) Initiator components 0.1-1% (h) Coloring pigments 0.1-3%.
    Type: Application
    Filed: July 29, 2004
    Publication date: March 17, 2005
    Applicant: Heraeus Kulzer GmbH & Co. KG
    Inventors: Albert Erdrich, Karl-Heinz Renz, Frank Stange, Novica Savic, Cornelia Hermann