ABSTRACT
The antimalarial activity of artemisinin and its derivatives have been widely recognized.A deep scientific research had produced many patent documents.In order to formulate strategies on research and patent application rationally,it is necessary to carry an analysis existing patent application systematically.Necessary patent bibliographic information was searched and downloaded using professional patent database.And then,patent and industrial pattern within were extracted comprehensively.Main subjects included artemisinin,artemisinic acid and arteannuin B.The results showed that through a series of statistical analysis,information on life cycle of artemisinin patent applications,application efficiency preferences,excellent applications and high value patents was obtained.It was concluded that in this field,the patent technology life cycle is in mature stage.Among them,artemisinin has a relatively large space for development.The most popular applications are anti-parasite,anti-tumor and anti-infection.The core theme of internal reference is to treat skin diseases and to suppress cancer.