Supported by the Youth Fund of the National Social Science Foundation of China(No.12CTQ025)
With the theoretical framework of patent information life cycle,this research studies the relationship between patents' life patterns and technological development stages of the relevant field,using life status in pat...
Supported by the National Social Science Foundation of China(No.12CTQ025)
With the aid of patent life cycle theory,and from the perspective of patent life span,this paper choose the ‘times of citation-time sequence'data of patents as an observation index to research on related patents in t...