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:
Nov. 08, 2005
Filed:
Jan. 29, 1999
Gerald Huber, Ohringen, DE;
Peter Gruber, Freiburg, DE;
Gerald Huber, Ohringen, DE;
Peter Gruber, Freiburg, DE;
Disphar International B.V., Hengelo Gld., NL;
Abstract
A pharmaceutical composition for slow release of active ingredient in the gastrointestinal tract, comprising a plurality of active ingredient-containing particles coated with a material insoluble in gastric and intestinal juices, where the particles have as core a homogeneous mixture comprising an active pharmaceutical ingredient and a polymer insoluble in gastric and intestinal juices, with an average internal pore diameter not exceeding 35 μm, makes efficient and pH-independent delaying of release possible even with comparatively small amounts of polymer. It is additionally distinguished by a long shelf life and is particularly suitable also for nonspherical particles.