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:
Mar. 08, 2011
Filed:
Oct. 16, 2007
Applicants:
Hsing-wen Sung, HsinChu, TW;
Mei-chin Chen, Taipei County, TW;
Po-wei Lee, Jhonghe, TW;
Hosheng Tu, Newport Beach, CA (US);
Inventors:
Hsing-Wen Sung, HsinChu, TW;
Mei-Chin Chen, Taipei County, TW;
Po-Wei Lee, Jhonghe, TW;
Hosheng Tu, Newport Beach, CA (US);
Assignees:
GP Medical, Inc., Newport Beach, CA (US);
National Tsing Hua University, Hsinchu, TW;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
A61K 9/14 (2006.01); A61K 9/16 (2006.01); A61K 9/50 (2006.01);
U.S. Cl.
CPC ...
Abstract
The invention discloses the biodegradable nanoparticle for use in nanoparticle projectile bombardment as a carrier for administering proteins, peptides or siRNAs transdermally to an animal subject. The nanoparticles are composed of positively charged chitosan substrate, negatively charged core substrate complexed with chitosan, and encapsulated bioactive agents.