Abstract:

In order to better understand the quantity and distribution of tobacco patent and find out the research tend of tobacco science and technology at home and abroad，tobacco patent at home and abroad during 2000—2009 were quantitatively analyzed with comparative analysis approach and literature metrology．Results showed that：（1）view of tobacco patent applications type, the proportion of China's invention patent applications is lower；（2）view of tobacco patent’s applicants, China tobacco company’s competitors is powerful；（3）view of tobacco patent’s development stage, China tobacco company’s new technologies has huge potential for development；（4）view of tobacco patent’s technology distribution, hot topics in tobacco research in China compared the same were different from those in other countries。