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.

Date of Patent:
Nov. 11, 2008

Filed:

Apr. 17, 2006
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 Univeristy, Hsinchu, TW;

Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
A61K 9/14 (2006.01); A61K 38/28 (2006.01); A61K 38/16 (2006.01); A61K 38/00 (2006.01); A61K 31/727 (2006.01); A61M 31/00 (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 or peptides to an animal subject. The nanoparticles are composed of positively charged shell substrate, negatively charged core substrate with encapsulated bioactive agents of proteins or peptides.


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