The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Jun. 28, 2005
Filed:
Dec. 20, 2001
Philipp Stössel, Frankfurt, DE;
Hubert Spreitzer, Viernheim, DE;
Heinrich Becker, Glashütten, DE;
Jacqueline Drott, Riedstadt, DE;
Philipp Stössel, Frankfurt, DE;
Hubert Spreitzer, Viernheim, DE;
Heinrich Becker, Glashütten, DE;
Jacqueline Drott, Riedstadt, DE;
Abstract
The present invention relates to substituted boron or aluminum spiro compounds and their use in the electronic industry. The compounds of the invention are used as electron transport material, hole blocking material and/or as host material in organic electroluminescence and/or phosphorescence devices, as electron transport material in photocopiers, as electron acceptor or electron transport material in solar cells, as charge transport material in organic ICs (circuits) and in organic solid-state lasers or organic photodetectors.