How long can I apply for a foreign patent after applying for a domestic patent?

1, after the domestic patent application, you can apply for a foreign patent as soon as you get the application number. But it needs to be filed within 12 months from the date of domestic patent application; You can also apply for PCT international application within 65,438+02 months, and you can extend 65,438+02 months to 30 months.

2. As long as you confirm the date of your first application in China, it doesn't matter if you publish your paper again; Because, in 12 months or 30 months, you can claim the priority of the first domestic application, so the filing date of foreign patents is regarded as the same as that of domestic patents. Therefore, the papers published later will not affect foreign patents.

3. The country has now liberalized the conditions for foreign-related agency, and all patent agencies registered in China National Intellectual Property Administration are qualified to be foreign-related agents. However, it is recommended to find a larger patent agency; You can check on the website of China Agents Association to see which agents are registered in local countries and which agents are more. Then go to the patent website to see which agent has more. No, everyone walks around and consults.