Patents by Inventor Klaus Dermann

Klaus Dermann 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 material comprising porous glass ceramics, porous glass ceramics, processes and use
    Patent number: 6362251
    Abstract: Dental material based on polymerizable (for example ethylenically unsaturated) monomers, epoxides, ormocers, liquid crystal monomers, oxethanes, spiro-orthoesters or spiro-carbonates as binders, a catalyst for cold, hot and/or photo-polymerization, and fillers, and a process for its preparation. Porous glass ceramics, a process for their preparation and uses thereof are also described. Dental materials according to the invention are suitable as alternative materials to the use of amalgam fillings.
    Type: Grant
    Filed: September 30, 1999
    Date of Patent: March 26, 2002
    Assignee: Degussa-Huls Aktiengesellschaft
    Inventors: Jochen Alkemper, Harald Rentsch, Klaus Dermann, Hans-Joachim Ritzhaupt-Kleissl, Jurgen Hausselt, Philipp Albert, Corinna Gall