Patents by Inventor Cornelia Hermann

Cornelia Hermann 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 materials with high abrasion resistance
    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
  • Dental materials with high abrasion resistance
    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