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. 15, 2000
Filed:
Jul. 07, 1998
Applicant:
Inventors:
Torsten Hoffmann, Dresden, DE;
Klaus Liebold, Dresden, DE;
Joachim Wolf, Radebeul, DE;
Heiko Schumacher, Aschaffenberg, DE;
Assignee:
Primary Examiner:
Int. Cl.
CPC ...
A61K / ; A61K / ; A61K / ; A61K / ;
U.S. Cl.
CPC ...
424468 ; 424451 ; 424452 ; 424465 ; 424474 ; 424475 ; 424484 ; 424486 ; 424487 ; 424469 ; 424470 ; 424464 ; 424457 ; 5147723 ; 514784 ; 514785 ; 514786 ; 514787 ;
Abstract
A process for preparing a controlled release composition with a controlled release matrix and containing a pharmaceutically active ingredient, which comprises granulating the active ingredient with a molten matrix material or with a matrix material while it is being melted and with optional additional inactive materials at a first elevated temperature, then cooling and screening the granulate, forming a fluidized bed of the resulting material at a second elevated temperature, and recovering the resulting product; and the product formed by the process.