ALEXANDRIA, Va., June 18 -- United States Patent no. 12,329,026, issued on June 10, was assigned to Merck Patent GmbH (Darmstadt, Germany).
"Materials for organic light emitting devices" was invented by Amir Hossain Parham (Darmstadt, Germany), Anja Jatsch (Darmstadt, Germany), Thomas Eberle (Darmstadt, Germany), Tobias Grossmann (Darmstadt, Germany), Jonas Valentin Kroeber (Darmstadt, Germany) and Lars Dobelmann-Mara (Darmstadt, Germany).
According to the abstract* released by the U.S. Patent & Trademark Office: "The present invention describes carbazole, dibenzofuran, dibenzothiophene and fluorene derivatives which are substituted by electron-deficient heteroaryl groups, in particular for use as triplet matrix materials in organic elect...