The China Patent Inquiry System is a Chinese patent registration and file history search system created by the State Intellectual Property Office (SIPO). The system covers Chinese patent, utility model and design applications filed on or after 10 February 2010. Information including bibliographic data, SIPO actions, decisions and other documents on file, can now be retrieved from the inquiry system. A multilingual interface was launched recently, for patent searches, which includes information in Chinese, English, Spanish, Japanese, Korean, French, Russian and German.
(Source: SIPO)