Patent Application Behavior of China own 3G Standard: An Example of TD-SCDMA

The TD-SCDMA is a Chinese 3G mobile phone standard, which has proven technological maturity and commercial viability. In this paper, a patent map is generated by Patent Information Analyze System(PIAS) of Chinese State Intellectual Property Office, and which are researched that the characteristics of the patent application behavior of standard developers in China. The research shows that patent applications of their own technology by standard developers provide technological basis for the establishment of standards. The leading enterprises of technical standard proposals are the core in the correlation relationship of standard developers and play key roles in the standards establishment. The patents of standard developers are the foundation in the early stage, and also decide in the standards future evolution.