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:
Dec. 27, 2005
Filed:
Sep. 27, 2002
Applicant:
Ing-jun Chen, Kaohsiung, TW;
Inventor:
Ing-Jun Chen, Kaohsiung, TW;
Assignees:
Other;
Cho-Jan Liang, , TW;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
A61P015/10 ; C07D473/06 ; C07D473/08 ;
U.S. Cl.
CPC ...
Abstract
The invention pertains to theophylline (1-methyl, 3-methyl xanthine) and IBMX (1-methyl, 3-isobutyl xanthine) derivatives of formulas I and II:where Ris —CHor —CHCH(CH), andRiswhere Rand Rare independently selected from the group consisting of OCH, CH, NO, F, Cl, Br and I.