What does it mean to safeguard the patent right of invention?

Patent maintenance refers to the process that the patentee pays a specified amount of maintenance fee to the patent management department in accordance with the law during the legal protection period of the patent to keep the patent valid. Patent maintenance time refers to the actual time from the date of application or authorization to the date of invalidation, termination, revocation or expiration of the patent. Patent laws in different countries or regions have different starting times for patent maintenance, some from the date of filing, some from the date of authorization, and the time for patent maintenance in China is from the date of patent application. The patent maintenance time mentioned in this paper refers to the overall patent maintenance time, that is, macro data, rather than the maintenance time of a single patent, unless explicitly stated. Patent duplication authorization is not just two inventions. Because the technical scheme composed of main technical features is basically the same or equivalent, each patent application is authorized. Repeated patent authorization not only infringes on the exclusivity of patents, but also destroys the price balance mechanism of patent "contract" between inventors and the state or the public. The legal issues involved in patent duplication authorization include not only patent exclusivity, but also the determination of patent protection scope and the determination of "the same invention-creation". Article 42 of the Patent Law, the term of the invention patent right is 20 years, and the term of the utility model patent right and the design patent right is 10 years, counting from the date of application.