1) legal protection. The patent system protects inventions through the patent law, which, like other laws, embodies the will of the state and has universal binding force.
2) Scientific review. The acquisition of the patent right should go through a comprehensive and strict examination of the patent application by the national patent authority, especially the examination of whether the substantive technical content of the invention and creation can be patented.
3) publicity. Refers to the patent office in accordance with the law through patent documents to the public to apply for a patent for the invention and creation of technical content. The publication of patent documents, on the one hand, plays the role of legal documents, publicly announcing who owns the patented technology, on the other hand, plays the role of technical information, and promotes the faster progress of science and technology through mutual notification, exchange, inspiration and promotion.
4) International communication. Although the patent law is only effective in designated countries, through bilateral agreements between countries and international treaties to which * * * is a party, the intangible asset of patent can break through national boundaries and communicate around the world. The patent system has played an important role in promoting international technical exchanges. Among the above features, legal protection is the essential feature of the patent system.