Patents by Inventor Stefanie Schwarzenbach

Stefanie Schwarzenbach 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).

  • Light emitting Cu (I) complexes
    Patent number: 8440826
    Abstract: Electroneutral metal complexes of the formula I L Cu A??(I) wherein L stands for an, especially bidentate, neutral ligand and A stands for an, especially bidentate, monoanionic ligand binding to Cu by at least one heteroatom selected from N, P, S; or wherein the ligands L and A with the above features are interconnected by at least one chemical bond to form one common tetradentate ligand; or protonated or alkylated forms or salts thereof show good light emitting efficiency in electroluminescent applications.
    Type: Grant
    Filed: June 13, 2008
    Date of Patent: May 14, 2013
    Assignee: BASF SE
    Inventors: Luisa De Cola, Yinghui Sun, Roger Prétôt, Doris Schwarzenbach, Oliver Schwarzenbach, Stefanie Schwarzenbach