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:
Apr. 21, 2015
Filed:
May. 30, 2008
Gary A. Johansson, Hockessin, DE (US);
Eric Maurice Smith, Hockessin, DE (US);
Daniel David Lecloux, Wilmington, DE (US);
Gary A. Johansson, Hockessin, DE (US);
Eric Maurice Smith, Hockessin, DE (US);
Daniel David Lecloux, Wilmington, DE (US);
EI du Pont de Nemours and Company, Wilmington, DE (US);
Abstract
There is provided a hole transport compound having Formula I or Formula II: Aris the same or different at each occurrence and can be phenylene, naphthylene, or binaphthylene. Aris the same or different at each occurrence and can be phenyl, biphenyl, terphenyl, naphthyl, or binaphthyl. m and n are the same or different and are an integer greater than 0. T is the same or different at each occurrence and is a conjugated moiety including at least one triarylamino group. The T moiety is connected in a non-planar configuration.