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. 06, 2019
Filed:
May. 12, 2015
Applicant:
Merck Patent Gmbh, Darmstadt, DE;
Inventors:
Andrea Hanefeld, Darmstadt, DE;
Markus Weigandt, Mannheim, DE;
Michael Wolf, Darmstadt, DE;
Percy Knolle, Munich, DE;
Matthias Schroeder, Bonn, DE;
Regina Scherliess, Kiel, DE;
Peter Walden, Berlin, DE;
Andrea Diedrich, Luenberg, DE;
Hartwig Steckel, Kiel, DE;
Renato Brito Baleeiro, Berlin, DE;
Assignee:
MERCK PATENT GMBH, Darmstadt, DE;
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
A61K 31/722 (2006.01); A61K 8/64 (2006.01); A61K 9/14 (2006.01); A61K 39/39 (2006.01); A61K 9/16 (2006.01); A61K 9/51 (2006.01); A61K 39/00 (2006.01);
U.S. Cl.
CPC ...
A61K 39/39 (2013.01); A61K 9/1623 (2013.01); A61K 9/1682 (2013.01); A61K 9/5161 (2013.01); A61K 2039/541 (2013.01); A61K 2039/55555 (2013.01); A61K 2039/55583 (2013.01); A61K 2039/6087 (2013.01);
Abstract
The present invention is directed to nanoparticles comprising chitosan and an antigen, whereby the chitosan has a degree of deacetylation of about 90% and a molecular weight from 5 kDa to 80 kDa, to microparticles containing such nanoparticles as well as to a process for preparation of such particles. The particles are usable for vaccination.