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:
Aug. 21, 2007
Filed:
Nov. 15, 2005
Applicants:
Guoqiang Lin, Shanghai, CN;
Jianguang Lei, Shanghai, CN;
Minghua Xu, Shanghai, CN;
Jin Ren, Shanghai, CN;
Inventors:
Guoqiang Lin, Shanghai, CN;
Jianguang Lei, Shanghai, CN;
Minghua Xu, Shanghai, CN;
Jin Ren, Shanghai, CN;
Assignee:
Attorneys:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
C07D 311/02 (2006.01); C07D 311/00 (2006.01);
U.S. Cl.
CPC ...
Abstract
4-Substituted coumarin compounds having the general formula of where R is H, CHO, OCH, X, NO, an alkyl having C, —OCHO—, an aryl being mono- or poly-substituted with CN or COOCHwith the aryl being a phenyl, naphthyl, or azaryl, or a coumarin group that is substituted with R, R, R, R, with R, R, R, and Rbeing H, an alkyl having C, X, NO, CN, OCH, COOCHor OR, Rbeing H or an alkyl having C, and X being a halogen.