The original intention of patent law is to promote the development of technology, encourage innovators to disclose their technology to the public, facilitate the public to inquire about technology, avoid blind secondary development, save social resources and improve technological progress. In the case of technology disclosure, the law gives the technology owner the monopoly right for a certain period of time, which is conducive to maintaining the benefits brought by technological innovation developers, the willingness and intensity of innovators to develop technology, and the willingness of technology owners to disclose technology. After the end of the patent right, technology can be used by the public at will, which is also considered as the contribution of innovators to society.
Whether an innovator's invention can be protected by patent, whether his patent right is stable and whether the technology is truly innovative can be questioned by the public, such as making a request for invalidation of patent.