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:
May. 29, 2012
Filed:
Jan. 23, 2012
Applicants:
Hsing-wen Sung, Hsinchu, TW;
Zi-xian Liao, Hsinchu, TW;
Shu-fen Peng, Hsinchu, TW;
Hosheng Tu, Newport Beach, CA (US);
Inventors:
Hsing-Wen Sung, Hsinchu, TW;
Zi-Xian Liao, Hsinchu, TW;
Shu-Fen Peng, Hsinchu, 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 51/00 (2006.01);
U.S. Cl.
CPC ...
Abstract
The invention discloses particulate complexes composed of chitosan, poly-glutamic acid, and at least one bioactive agent, wherein equal moles of the positively charged chitosan and the negatively charged poly-glutamic acid substrate form an electrostatic network enabling improved loading the bioactive agent.