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:
Aug. 12, 2008
Filed:
Jan. 14, 2005
Applicants:
Gary Delmar Jaycox, West Chester, PA (US);
Mookkan Periyasamy, Wilmington, DE (US);
Gang Yu, Santa Barbara, CA (US);
Inventors:
Gary Delmar Jaycox, West Chester, PA (US);
Mookkan Periyasamy, Wilmington, DE (US);
Gang Yu, Santa Barbara, CA (US);
Assignee:
E.I. du Pont de Nemours and Company, Wilmington, DE (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
B32B 15/08 (2006.01); H01H 33/59 (2006.01);
U.S. Cl.
CPC ...
Abstract
The present invention is generally directed to a hole transport polymer comprising a polymeric backbone having linked thereto a plurality of substituents comprising fused aromatic ring groups, with the proviso that the polymer does not contain groups selected from triarylamines and carbazole groups. It further relates to devices that are made with the polymer.