The database (WFPD for short) includes patent documents of China and patents of foreign countries and international organizations, including inventions, utility models and designs at home and abroad, covering all disciplines of natural science. Including patent information data of seven countries and two organizations (China, USA, Japan, Germany, UK, France, Switzerland, European Patent Office and World Intellectual Property Organization).
Patents included since 1985. The full text of some patents can be viewed. China patents are updated every two weeks, and foreign patents are updated every quarter.
Provide IPC international patent classification navigation, which is convenient to retrieve all patent information from the classification.