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. 23, 2021
Filed:
Mar. 15, 2017
Applicants:
Dow Global Technologies Llc, Midland, MI (US);
Rohm and Haas Electronic Materials Korea Ltd., Chungcheongnam-do, KR;
Inventors:
Kyoung Moo Koh, Midland, MI (US);
Mark E. Ondari, Midland, MI (US);
Sukrit Mukhopadhyay, Midland, MI (US);
Timothy J. Gallagher, Midland, MI (US);
Hong-Yeop Na, Chungcheongnam-do, KR;
Assignees:
Dow Global Technologies LLC, Midland, MI (US);
Rohm and Haas Electronic Materials Korea Ltd., Chungcheongnam-do, KR;
Primary Examiner:
Int. Cl.
CPC ...
H01L 51/00 (2006.01); C07D 239/74 (2006.01); H01L 51/50 (2006.01);
U.S. Cl.
CPC ...
H01L 51/0072 (2013.01); C07D 239/74 (2013.01); H01L 51/5072 (2013.01); H01L 2251/552 (2013.01); H01L 2251/556 (2013.01);
Abstract
Provided is a composition comprising one or more phenanthroquinazoline-core compounds having structure (I) wherein each of Rand Ris independently a substituted or unsubstituted phenyl group.