Patents by Inventor Silke Ziegler

Silke Ziegler 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).

  • POLYMERIZABLE DENTAL MATERIAL
    Publication number: 20160081885
    Abstract: A subject matter of the invention is a self-etching self-curing dental adhesive which, through the use of a specific redox initiator system comprising at least six constituents, on the one hand is stable on storage as two-component kit and, on the other hand, shows a high shear bond strength on use.
    Type: Application
    Filed: September 24, 2015
    Publication date: March 24, 2016
    Inventors: Stephan Neffgen, Silke Ziegler
  • KIT FOR FIXING A DENTAL RESTORATION MATERIAL ON A TOOTH SUBSTANCE
    Publication number: 20100129777
    Abstract: The subject matter of the invention is a kit for fixing a dental restoration material on a tooth substance, which material contains the following components: a. an electron donor compound; b. a first adhesive component which contains an oxidation agent as constituent of a polymerization initiator system and a polymerizable acid; c. a second adhesive component which contains a reduction agent as constituent of a polymerization initiator system and a polymerizable monomer, oligomer, or prepolymer, which does not contain any acid groups.
    Type: Application
    Filed: March 12, 2008
    Publication date: May 27, 2010
    Applicant: ERNST MüHLBAUER GMBH & CO. KG
    Inventor: Silke Ziegler
  • Dental material containing phosphonic acids
    Patent number: 6902608
    Abstract: The invention relates to dental materials which contain hydrolysis-resistant phosphonic acids with ethylenically unsaturated double bonds and which are especially suitable for use as adhesion promoters.
    Type: Grant
    Filed: July 3, 2001
    Date of Patent: June 7, 2005
    Assignee: Ernst Muhlbauer GmbH & Co., KG
    Inventors: Christoph Erdmann, Silke Ziegler, Stephan Neffgen, Carsten Bolln, Wolfgang Mühlbauer, Rainer Lück
  • Dental material containing phosphonic acids
    Publication number: 20030167968
    Abstract: The invention relates to dental materials which contain hydrolysis-resistant phosphonic acids with ethylenically unsaturated double bonds and which are especially suitable for use as adhesion promoters.
    Type: Application
    Filed: January 6, 2003
    Publication date: September 11, 2003
    Inventors: Christoph Erdmann, Silke Ziegler, Stephan Neffgen, Carsten Bolln, Wolfgang Muhlbauer, Rainer Luck
  • Method of producing aryl-substituted, amino-acylated phosphonic-acid derivatives with the aid of metal complexes of chiral, amphiphilic ligands
    Patent number: 5886217
    Abstract: The invention is relates to a method of producing aryl-substituted, amino-acylated phosphonic-acid derivatives with the aid of metal complexes of chiral amphiphilic ligands in that according to the invention .alpha.-N-acyl-protected, .beta.-substituted alkene phosphone derivatives are asymmetrically hydrogenated in the presence of a chiral rhodium catalyst in a solvent or a suspension. The use of the micelle-forming catalyst makes possible the hydrogenation of unsaturated phosphonic-acid derivatives in water with a high reaction rate with the obtainment of very good enantiomeric excesses.
    Type: Grant
    Filed: November 20, 1997
    Date of Patent: March 23, 1999
    Assignee: Degussa Aktiengesellschaft
    Inventors: Gunther Oehme, Ute Schmidt, Silke Ziegler, Ingrid Grassert, Christine Fischer