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. 15, 1994
Filed:
Jun. 17, 1991
Applicant:
Inventors:
Christian Fechner, Berlin, DE;
Michael Humpel, Berlin, DE;
Fred Windt-Hanke, Berlin, DE;
Johannes Tack, Berlin, DE;
Assignee:
Schering Aktiengesellschaft, Berlin and Bergkamen, DE;
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
A61K / ; A61K / ;
U.S. Cl.
CPC ...
424490 ; 424489 ; 424493 ; 424494 ; 424497 ; 424499 ; 514822 ;
Abstract
Medicinal agents are claimed exhibiting sustained release of active compound, containing a solid active ingredient, poorly soluble in water, and auxiliary agents, characterized in that the active compound, in a microcrystalline form or in form of a molecular dispersion, is distributed in or on pellets, and that the pellets are covered by a membrane having retarded permeability with respect to the active compound.