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. 12, 2014
Filed:
Mar. 14, 2003
Applicant:
Celal Albayrak, Berlin, DE;
Inventor:
Celal Albayrak, Berlin, DE;
Assignee:
Alrise Biosystems GmbH, Berlin, DE;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
A61K 9/14 (2006.01); A61K 9/16 (2006.01); A61K 9/51 (2006.01); A61K 38/00 (2006.01);
U.S. Cl.
CPC ...
Abstract
The invention relates to nano- or microparticles containing an active substance embedded in a polymer matrix and to a method for their production, comprising the steps of: a) effecting precipitation of an active substance in a solution which comprises a polymer dissolved in an organic solvent to obtain a suspension of the active substance, b) mixing the obtained suspension with an aqueous surfactant solution and solidifying the polymer to obtain a suspension of nano- or microparticles which contain an active substance.