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. 20, 2012
Filed:
Mar. 13, 2009
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 38/00 (2006.01); A61K 38/28 (2006.01);
U.S. Cl.
CPC ...
Abstract
The invention discloses the biodegradable nanoparticle for use in nanoparticle projectile bombardment as a carrier for administering nucleic acid, DNA, RNA or siRNAs transdermally to an animal subject. The nanoparticles are composed of positively charged chitosan substrate and the nucleic acid encapsulated within the nanoparticles or electrostatically loaded on the exterior surface of the nanoparticles.