The research performed analysis on patent applicant ranking, IPC, patent type and legal status in order to explore application and authorization of front-end industry chain dominated by planting, breeding, soil improv...The research performed analysis on patent applicant ranking, IPC, patent type and legal status in order to explore application and authorization of front-end industry chain dominated by planting, breeding, soil improvement and substrate culti- vation technologies. The results showed that research institutions and big tobacco enterprises play a leading role in the tobacco industry, for example, Yunnan Tobac- co Agricultural S＆T Research Institute and Guizhou Tobacco Agricultural S＆T Re- search Institute have a total of 26 patents; A01G subclass represents 58% of total patents, dominated by Yunnan Tobacco Agricultural S＆T Research Institute and Henan Agricultural University; there are only invention and practical use patents, of which invention patents represent 92%; authorized patents take up to 31% and in- valid patents represent 23%.展开更多
基金Supported by Early Warning Analysis of Patent for Key Industries and key Fields in Yunnan Province~~
文摘The research performed analysis on patent applicant ranking, IPC, patent type and legal status in order to explore application and authorization of front-end industry chain dominated by planting, breeding, soil improvement and substrate culti- vation technologies. The results showed that research institutions and big tobacco enterprises play a leading role in the tobacco industry, for example, Yunnan Tobac- co Agricultural S＆T Research Institute and Guizhou Tobacco Agricultural S＆T Re- search Institute have a total of 26 patents; A01G subclass represents 58% of total patents, dominated by Yunnan Tobacco Agricultural S＆T Research Institute and Henan Agricultural University; there are only invention and practical use patents, of which invention patents represent 92%; authorized patents take up to 31% and in- valid patents represent 23%.
