What causes will lead to the loss of patent rights?

1. Term of patent right. The term of the patent right is the protection period of the patent right, which refers to the period when the patent right granted by the patent authority according to law takes legal effect. After the patent right is granted according to law, the patentee enjoys the exclusive right to his invention and creation. This kind of exclusive right is not only limited in content, but also strictly limited in term. The protection period stipulated in the patent laws of all countries in the world is different. Generally speaking, the protection period of patent rights in industrialized countries is longer, while that in developing countries is relatively shorter. The patent laws of individual countries stipulate several different protection periods for patent rights, and the specific protection period is chosen by the patentee, such as Ecuador and Iran. In addition, after the term of the patent right is determined, whether it can be extended or not varies from country to country. The patent laws of most countries stipulate that the term of the patent right shall not be extended, and a few countries stipulate that it can be extended by renewal, but only once. After the expiration of the patent protection period, the patent right will automatically expire, and the invention will become the public wealth of society and human beings, and anyone can use it freely for free.

2. Reasons for the termination of the patent right. The termination of the patent right means that the legal effect of the patent right is extinguished before or after the expiration of the protection period due to reasons prescribed by law. The former is called the natural termination of the patent right, and the latter is terminated for reasons stipulated by law. Generally speaking, there are five main reasons for the termination of patent rights: the expiration of patent rights; The patentee fails to pay the annual fee in accordance with the provisions; The patentee waives his patent right in writing; The patent right is terminated because no one inherits it; No matter why the patent right is terminated, the patent right enjoyed by the patentee will cease to exist, and the invention as a patent will become the public wealth of society and mankind, and anyone can use it freely for free.

3. Patent invalidation system. Invalidation of patent right refers to the situation that the patent right that has been granted is declared invalid after reexamination by the Patent Reexamination Board at the request of the relevant unit or individual because it does not conform to the provisions of the Patent Law. The purpose of stipulating the patent invalidation system is to correct the mistakes in patent authorization, which is conducive to protecting public interests and promoting economic development. The main reasons why the patent right is invalid are: the invention-creation does not have the conditions and scope for granting the patent right stipulated in the patent law; The patentee has no right to apply for and obtain the patent right; When the patent application was granted the patent right, the content of the invention-creation was not fully disclosed; The application or picture of the invention, utility model or design modification is beyond the scope of the original specification, claims or pictures.