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:
Feb. 28, 2012
Filed:
Nov. 08, 2005
Ming-fa Hsieh, Hsinchu, TW;
Hsuen-tseng Chang, Kaohsiung, TW;
Chin-fu Chen, Taipei County, TW;
Yuan-chia Chang, Taipei, TW;
Pei Kan, Hsinchu, TW;
Tsai-yu Lin, Changhua County, TW;
Yuan-hung Hsu, Hsinchu, TW;
Ming-Fa Hsieh, Hsinchu, TW;
Hsuen-Tseng Chang, Kaohsiung, TW;
Chin-Fu Chen, Taipei County, TW;
Yuan-Chia Chang, Taipei, TW;
Pei Kan, Hsinchu, TW;
Tsai-Yu Lin, Changhua County, TW;
Yuan-Hung Hsu, Hsinchu, TW;
Industrial Technology Research Institute, Hsinchu, TW;
Abstract
An amphiphilic block copolymer. The amphiphilic block copolymer includes one or more hydrophilic polymers, one or more hydrophobic polymer, and one or more zwitterions. The invention also provides a nano particle and carrier comprising the amhpiphilic block copolymer for delivery of water-insoluble drugs, growth factors, genes, or cosmetic substances.