Can China's patents be used abroad?

patents are regional, that is, patents applied in one country can only be used in this country, and if they go abroad, others can copy them, which is beyond their control. Therefore, if you want to protect your own patents in other countries, you must also apply for patents in foreign countries. Similarly, if the patent of another country is not applied in China, you can use it directly without fear of infringement, but remember not to sell the products made from the copied technology to countries that have applied for the patent.