The protection of patent right is regional, but the value of patent application is the same at home and abroad. If you want to go abroad and enter the international market, you must apply for patent protection, because the awareness and mechanism of patent protection abroad is better than that in China. Without patent protection, it is easy to be attacked by foreign competitors. Similarly, if you don't apply for international patent protection, it is easy for others to apply for copying your products and technologies first. . Therefore, it is better to apply for a patent in China than in the United States.
Generally, when a product circulates in the domestic market, it needs to apply for a domestic patent first, and then apply for a foreign patent, so that you can apply for the priority of a domestic patent at the same time as applying for a US patent, thus protecting both domestic and international products or technologies (from Shenzhen No.1 Middle School).