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:
Aug. 04, 2009
Filed:
Apr. 28, 2003
Feng-nien Ko, Taipei, TW;
Wei-ja Wang, Taipei, TW;
Cheng-ko Liu, Shindian, TW;
Pin-fen Chen, Taipei, TW;
Yu-feng Han, Taichung, TW;
Mai-yu Lee, Taipei, TW;
Feng-Nien Ko, Taipei, TW;
Wei-Ja Wang, Taipei, TW;
Cheng-Ko Liu, Shindian, TW;
Pin-Fen Chen, Taipei, TW;
Yu-Feng Han, Taichung, TW;
Mai-Yu Lee, Taipei, TW;
Pharmaceutical Industry Technology and Development Center, Taipei Hsien, TW;
Abstract
An antitussive agent. A composition for relieving, preventing and/or treating cough includes a sufficient amount of Cynanchi Atrati Radix extract as an active component. The effective Cynanchi Atrati Radix extract is prepared by extracting Cynanchi Atrati Radix with water, ethanol, hexane, ethyl acetate or a combination thereof. The crude extract can be further fractioned by ultrafiltration or reverse phase column.