Patents by Inventor Esther Breunning

Esther Breunning 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).

  • SPIRO DIHYDROACRIDINE DERIVATIVES AND THE USE THEREOF AS MATERIALS FOR ORGANIC ELECTROLUMINESCENCE DEVICES
    Publication number: 20140316134
    Abstract: The present invention relates to compounds of formulae (1), (2) or (3) that are suitable for use in electronic devices, and to electronic device, in particular organic electroluminescence devices, containing these compounds.
    Type: Application
    Filed: October 18, 2012
    Publication date: October 23, 2014
    Applicant: MERCK PATENT GMBH
    Inventors: Philipp Stoessel, Elvira Montenegro, Esther Breunning