Abstract:
In order to accurately understand the current status and forecast research progress and development trend of oral smokeless tobacco products in China, patents related to oral smokeless tobacco products published by the State Intellectual Property Office (SIPO) from 1985 to 2018 were searched and statistically analyzed. The results showed that:1) From 1985 to 2018, there were a total of 270 patents related to oral smokeless tobacco products in China, of which 233 were inventions, 28 were utility models and 9 were appearance designs. Among them, the proportion of patents related to pouched oral tobacco products was more than 50%, indicating the pouch form being the mainstream technology for oral smokeless tobacco products. 2) Since 2008, patent applications for oral smokeless tobacco products had experienced an active and peak period, and domestic tobacco industry made considerable development, their patent application amount exceeded that of foreign tobacco companies in 2013, with China Tobacco Yunnan Industrial Limited Corporation and Zhengzhou Tobacco Research Institute of CNTC leading in the amount of patent applications. Among the foreign applicants, the number of applications by Reynolds American Tobacco Company was the most, followed by Philip Morris International and U.S. Smokeless Tobacco Company; all the patents applied by these companies were inventions. 3) The key technologies for pouched oral tobacco products included tobacco formulation, preparation process, packaging method, etc. The key technologies for dissolvable oral tobacco product were preparation process, product form, tobacco formulation, etc. The patents for pouched oral tobacco products were less involved in packaging mode, slow-release technology and ripening technology, and the patents for dissolvable tobacco products were less involved in slow-release technology and forming technology.