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. 10, 2019
Filed:
Jan. 22, 2013
Applicant:
Bayer Oy, Turku, FI;
Inventors:
Heikki Lyytikäinen, Naantali, FI;
Harri Jukarainen, Kuusisto, DE;
Assignee:
BAYER OY, Turku, FI;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
A61K 9/00 (2006.01); A61K 47/02 (2006.01); A61M 31/00 (2006.01);
U.S. Cl.
CPC ...
A61M 31/002 (2013.01); A61K 9/0024 (2013.01); A61K 9/0036 (2013.01); A61K 9/0039 (2013.01); A61K 9/0092 (2013.01); A61K 47/02 (2013.01);
Abstract
The present invention provides a novel drug delivery system for the controlled release of therapeutically active substances at a predetermined, essentially constant release rate over a prolonged period of time. The delivery system comprises at least one core comprising said therapeutically active substance(s), at least one membrane encasing the core and an intermediary layer of a substantially inert material, wherein the intermediary layer is applied between the core and the membrane or between two membrane layers.