Priority principle in patent

The priority of patent was first put forward by the Paris Convention on Intellectual Property, and its main purpose is to protect the patentee and the creators of these inventions. At present, the priority in patent is divided into international priority and domestic priority. The international priority of patent means that if the patentee has applied for a patent in one country, then if he has applied for a patent in other countries, it can be calculated according to the time when he applied for a patent in the first country. The advantage of this is to protect the patentee, because it is possible that the patentee can't apply for a patent in other countries, and others will apply for this patent in advance, which infringes the interests of the patentee. In this way, once the patentee applies for a patent in this country, it will be calculated according to the time of initial application rather than the time of actual application in this country, so as to prevent others from applying in advance. However, this priority must be a convention, bilateral or multilateral agreement reached in advance between these countries. If some countries have never participated in such an agreement and do not recognize this priority, then this principle does not exist. The domestic priority of a patent means that sometimes the patentee may want to change the specific content of the patent after applying for the patent, but before the State Patent Office has approved the patent, so he must withdraw the patent application from the patent office and apply to the patent office again after the change. However, within the time of this change, it is likely that someone else will apply for the same patent first, which infringes the interests of the patentee. Therefore, in order to better protect the patentee, the law stipulates that the patent can be changed within a certain period of time, and the application time is reserved. During this period, the re-submission of the patent is calculated according to the initial patent application time, so as to prevent others from taking the opportunity to apply for the patent first, and the real patentee can submit the revised patent application after the change.