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:
Nov. 04, 2014
Filed:
Nov. 18, 2008
Applicants:
Natasha M. Conway, Histon, GB;
Mary J. Mckiernan, Cottenham, GB;
Brian Tierney, Cambridgeshire, GB;
Inventors:
Assignees:
Cambridge Display Technology Limited, Cambridgeshire, GB;
Sumitomo Chemical Co., Ltd., Tokyo, JP;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
H01L 29/08 (2006.01); H01L 51/00 (2006.01); H01L 51/50 (2006.01);
U.S. Cl.
CPC ...
H01L 51/0039 (2013.01); H01L 51/0043 (2013.01); H01L 51/5048 (2013.01);
Abstract
An organic light-emitting device comprising an anode; a hole transport layer; a light-emitting layer; and a cathode, characterized in that the hole transport layer comprises a polymer having a repeat unit comprising a 9,9 biphenyl fluorene unit wherein the 9-phenyl rings are independently and optionally substituted and the fluorene unit is optionally fused.
Quick Actions:
Conway, Natasha. (2014). Light-emitting device and 9.9 biphenyl fluorene materials therefor (U.S. Patent No. 8878163). U.S. Patent and Trademark Office. https://idiyas.com/patent/badge/8878163
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile