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In the patent inquiry phase of China's patent application, should we only inquire whether there are any domestic problems or should we also inquire about foreign patent applications?

1. Patents are territorial. You are applying for a Chinese patent, so there is no need to apply for foreign patents.

2. If there is the same patent abroad, as long as it is not available in China It’s okay for foreigners to apply for international patents

3. Therefore, according to point 2, it is also very important to learn to search for foreign patents, because you can search for their methods and use them (as long as there is no equivalent in China The patent is within the validity period)

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