1. Patented technologies applied for in China are only protected domestically after authorization.
2. Priority can only be used within the priority period. If it exceeds the period, it cannot be used.
3. Outside the priority period, a patent application can be filed, but there is a problem with authorization. The "novelty" of patents is "international novelty" according to the legal provisions of various countries. That is to say, other people can apply for patents in other countries, but due to the existence of your prior patent, their patent applications cannot be authorized, or they are authorized but unstable (because some patents are not reviewed Searches can be authorized under this legal system, but you can use your prior application as evidence to invalidate the authorized patent through other legal channels. This problem is more complicated, haha).