China Patent Database Search System Software V1.0
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Expired patent (including invalid patent application) technology has lost its patent The protection of the law has become a wealth that the public can use free of charge. It is the product of people's technological innovation and the crystallization of the hard work of scientific and technological workers around the world. The technology of expired patents (including expired patent applications) has lost the protection of patent law, but its gold content is beyond doubt. Therefore, there is a saying in the patent community: "The technology of expired patents (including expired patent applications) is a golden mountain waiting for people to develop." The function of this software is to search the Chinese patent database using multiple methods to find all patents that meet the requirements. , you can choose practical patents to use for free based on your actual conditions, and allow you to produce products based on patent drawings.