Patents by Inventor Gunther Groeger

Gunther Groeger 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).

  • Root Canal Filling Material
    Publication number: 20110053117
    Abstract: The invention describes polymerisable compositions which contain higher molecular weight di(meth)acrylates, curing agents and X-ray-opacifying additives, which result in fully cured, readily removable materials and which are especially suitable for filling and sealing root canals.
    Type: Application
    Filed: June 26, 2008
    Publication date: March 3, 2011
    Inventors: Jürgen Engelbrecht, Gunther Groeger
  • Photoinitiator system with acylphosphine oxide initiators
    Patent number: 7144927
    Abstract: A visible light photopolymerizable composition comprising a) an aryliodonium salt and b) an acylphosphine oxide compound. These compositions can be used together with an epoxy resin as a dental composition.
    Type: Grant
    Filed: November 16, 2000
    Date of Patent: December 5, 2006
    Assignee: S & C Polymer Silicon-und Composite-Spezialitaten GmbH
    Inventors: Juergen Engelbrecht, Gunther Groeger, Wolfram Ziegler
  • Photoinitiator system with titanocene initiators
    Patent number: 6880296
    Abstract: A visible light photopolymerizable composition comprising a) an aryliodonium salt and b) a titanocene derivate. These compositions can be used together with an epoxide resin as a dental composition.
    Type: Grant
    Filed: November 7, 2000
    Date of Patent: April 19, 2005
    Assignee: S & C Polymer Silicon- und Composite-Spezialitaten GmbH
    Inventors: Juergen Engelbrecht, Gunther Groeger, Wolfram Ziegler