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. 04, 1990
Filed:
Aug. 07, 1989
Klaus U Weithmann, Hofheim am Taunus, DE;
Dirk Seiffge, Munzenberg, DE;
Hoechst Aktiengesellschaft, Frankfurt am Main, DE;
Abstract
A combination product containing (A) on the one hand a xanthine derivative of the formula ##STR1## in which one of the radicals R.sup.1 and R.sup.3 represents a straight-chain alkyl, .omega.-1)-oxoalkyl or (.omega.-1)-hydroxyalkyl group having 3 to 8 carbon atoms, and the two other radicals R.sup.2 and R.sup.3, or R.sup.1 and R.sup.2 represent straight-chain or branched alkyl groups having 1 to 8 carbon atoms in the position of R.sup.1 and R.sup.3 and 1 to 4 carbon atoms in the position of R.sup.2, the maximum total of carbon atoms in these two alkyl substituents being 10, or of the formula ##STR2## in which R represents an alkyl radical having 1 to 4 carbon atoms, or prodrug forms of the oxoalkylxanthines of the formula I and II or of the hydroxylalkylxanthine of the formula I, or its metabolites, and