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. 04, 2014
Filed:
Aug. 12, 2011
Yin-chih Fu, Kaohsiung, TW;
Chih-kuang Wang, Hsinchu, TW;
Gwo-jaw Wang, Taipei, TW;
Mei-ling Ho, Kaohsiung, TW;
Hui-ting Chen, Yonghe, TW;
Je-ken Chang, Kaohsiung, TW;
Cherng-chyi Tzeng, Kaohsiung, TW;
Yin-Chih Fu, Kaohsiung, TW;
Chih-Kuang Wang, Hsinchu, TW;
Gwo-Jaw Wang, Taipei, TW;
Mei-Ling Ho, Kaohsiung, TW;
Hui-Ting Chen, Yonghe, TW;
Je-Ken Chang, Kaohsiung, TW;
Cherng-Chyi Tzeng, Kaohsiung, TW;
Kaohsiung Medical University, Kaohsiung, TW;
Abstract
A controlled release system and manufacturing method is provided. The method comprises providing a first aqueous solution containing a hydrophilic drug and an alkaline agent, providing an organic solution containing a hydrophobic molecule, providing a second aqueous solution containing a hydrophilic surfactant, mixing the first hydrophilic solution with the organic solution to form a first emulsion, and mixing the first emulsion with a second aqueous solution to form a second emulsion containing delayed-release microsphere.