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. 04, 1999
Filed:
Nov. 05, 1997
Applicant:
Inventors:
Assignee:
Uniax Corporation, Santa Barbara, CA (US);
Primary Examiner:
Int. Cl.
CPC ...
N05B / ;
U.S. Cl.
CPC ...
428690 ; 428691 ; 428917 ; 313504 ; 528422 ; 528425 ;
Abstract
Fluorenes and polyfluorenes having one or two polar-group-containing alkyl substituents on their '9' carbon methylenes are disclosed together with the polymers' use as luminescent materials in organic light-emitting diodes and light-emitting electrochemical cells.