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. 14, 2019
Filed:
Jul. 29, 2014
Cambridge Display Technology Limited, Godmanchester, GB;
Sumitomo Chemical Company Limited, Tokyo, JP;
Sophie Barbara Heidenhain, Lower Cambourne, GB;
Richard Owoare, Legon, GH;
Gary Watts, Cambridgeshire, GB;
Jonathan Pillow, Godmanchester, GB;
Cambridge Display Technology Limited, Godmanchester, GB;
Sumitomo Chemical Company Limited, Tokyo, JP;
Abstract
A polymer comprising a repeat unit of formula (I): wherein Rin each occurrence is independently H or a substituent, and the two groups Rmay be linked to form a ring; Rin each occurrence is independently a substituent; Arin each occurrence is independently an aryl or heteroaryl group that may be unsubstituted or substituted with one or more substituents; Rin each occurrence is independently a substituent; each n independently is 0, 1, 2 or 3 with the proviso that at least one n=1; and each m is independently 0 or 1. The polymer may be a light-emittingof an organic light-emitting device.