Domestic patents are generally divided into three types, namely, utility model patents, invention patents and design patents. In China, invention patents are generally the most valuable patents, followed by others. But it can't be said that the invention patent is king, and the invention patent needs to adapt to the market, otherwise it is equivalent to a useless patent. Foreign patents are different from domestic ones and need to be determined according to the policies of a certain country.

American patents are also different from China in institutional setup. The United States directly unifies the Patent and Trademark Office, and there is only one trademark office, which acts as an agent for patent and trademark applications. As we all know, patents and trademarks in China are divided by different institutions, and the business is done well through division of labor and cooperation. China is divided into Trademark Office, Patent Office (namely Intellectual Property Office) and Copyright Office.

The last difference is that the types of patent applications are different. Patent applications in the United States are divided into invention patents, plant invention patents and design patents. The invention of plants is just different from the naming of China utility model patent application. Regarding the differences between domestic and foreign patent applications, it is generally necessary to consider the differences of patent applications stipulated by national policies. Take the United States as an example. Of course, other countries also have different patent systems.