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:
May. 08, 2012
Filed:
Oct. 11, 2005
Applicants:
Carl R. Towns, Suffolk, GB;
Caroline Towns, Legal Representative, Suffolk, GB;
Mary J. Mckiernan, Cambridgeshire, GB;
Annette Steudel, Cambridge, GB;
Inventors:
Carl R. Towns, Suffolk, GB;
Caroline Towns, legal representative, Suffolk, GB;
Mary J. McKiernan, Cambridgeshire, GB;
Annette Steudel, Cambridge, GB;
Assignees:
Cambridge Display Technology Limited, Cambridgeshire, GB;
CDT Oxford Limited, Cambridgeshire, GB;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
H01L 51/00 (2006.01);
U.S. Cl.
CPC ...
Abstract
A semiconductive hole transport material containing polar substituent groups, the polar substituent groups substantially not affecting the electronic properties of the hole transport material and the hole transport material being soluble in a polar solvent.