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:
Apr. 23, 2024
Filed:
Sep. 25, 2020
Applicant:
Evonik Corporation, Piscataway, NJ (US);
Inventors:
David Fecher, Saarbruecken, DE;
Maria Camilla Operti, Darmstadt, DE;
Rima Jaber, Frankfurt, DE;
Andrea Engel, Birmingham, AL (US);
Silko Grimm, Rossdorf, DE;
Min Yang, Marlton, NJ (US);
Assignee:
Evonik Corporation, Piscataway, NJ (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
A61K 9/51 (2006.01); C08J 3/16 (2006.01);
U.S. Cl.
CPC ...
A61K 9/5192 (2013.01); A61K 9/5138 (2013.01); A61K 9/5153 (2013.01); C08J 3/16 (2013.01); C08J 2367/02 (2013.01); C08J 2367/04 (2013.01); C08J 2467/04 (2013.01);
Abstract
A process can be used for preparing nanoparticles containing at least one bio-resorbable polyester. The nanoparticles are in the form of a powder with a Z-Average particle size Din the range of 1 to 450 nm, and with a polydispersity index PDI in the range of 0.01 to 0.5. The process involves emulsion-solvent extraction or emulsion-solvent evaporation, and application of ultrasonic sound.