Applying for patents from multiple cities will not have a direct impact on each other. Patent is a kind of territorial intellectual property protection, and its effective scope is within a specific country or region. Therefore, the scope of patent protection is determined by the country or region selected when applying for the patent.
In the same country or region, patent applications can be filed in different cities as needed. Each application stands independently and is evaluated according to its own review process. Therefore, the approval or rejection of a patent application in one city will not have a direct impact on the results of applications in other cities.
However, it should be noted that there is an information sharing mechanism for patent examinations between different prefectures and cities. For example, after a patent application is made public, other applicants can view and provide opinions on the patent. Therefore, when applying for patents in different cities and towns, you can learn about the technical status of other applicants through information sharing, which may have an impact on competition among applicants.
In addition, when applying for patents across cities, you need to note that there may be differences in regulatory requirements and applicable standards between cities. Therefore, applicants need to reasonably adjust and prepare application materials for different prefectures and cities to meet the requirements of each region.
In short, patent applications in multiple cities will not have a direct impact on each other. However, during the application process, you need to pay attention to the differences in information sharing mechanisms and regulatory requirements in different cities.