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:
Feb. 24, 2009
Filed:
Nov. 04, 2003
Applicants:
Jeremy Burroughes, Cambridgeshire, GB;
Richard Friend, Cambridgeshire, GB;
Clare Foden, Cambridgeshire, GB;
Inventors:
Jeremy Burroughes, Cambridgeshire, GB;
Richard Friend, Cambridgeshire, GB;
Clare Foden, Cambridgeshire, GB;
Assignee:
Cambridge Display Technology Limited, Cambridgeshire, GB;
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
H01L 51/54 (2006.01); C08G 61/00 (2006.01); C09K 11/06 (2006.01); H05B 33/14 (2006.01);
U.S. Cl.
CPC ...
Abstract
A polymer formed from optionally substituted first repeat units of formula (I) wherein Ar is selected from (a) aromatic hydrocarbon substituted with at least one electron withdrawing group or electron withdrawing heteroaryl. The polymers have application in electroluminescent devices.