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:
Jan. 25, 2011
Filed:
Apr. 06, 2009
Applicants:
Hyun-nam Cho, Seoul, KR;
Sung Hyun Jung, Seoul, KR;
Seok-jin Park, Seoul, KR;
Seung-eun Lee, Seoul, KR;
Inventors:
Hyun-Nam Cho, Seoul, KR;
Sung Hyun Jung, Seoul, KR;
Seok-Jin Park, Seoul, KR;
Seung-Eun Lee, Seoul, KR;
Assignee:
Korea Institute of Science and Technology, Seoul, KR;
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
C07C 243/20 (2006.01);
U.S. Cl.
CPC ...
Abstract
Disclosed are compounds represented by formula (), wherein m, X, R, R, R, R', R′, R′, and Ar are described herein. The inventive cyclopentadienone compounds can be used as core materials for an organic electroluminescence element or other optical devices. The invention also describes methods for preparing compounds of formula ().