Can the patent confidentiality examination request be submitted after acceptance and before preliminary examination?

Patent confidentiality review refers to the situation that a technology developed in Chinese mainland directly applies for a patent in a foreign country. The applicant can only apply for a patent in a foreign country after submitting a request for confidentiality review to the State Information Bureau and passing the confidentiality review.

Confidentiality review is a policy to prevent some confidential technologies from flowing abroad.

Therefore, if you belong to the above situation, you should first submit a request for confidentiality review to the National Information Bureau, and then follow up according to the review results.

If an application is filed against China, there is no need to submit a request for confidentiality review.

If the international application is submitted through PCT Office of China Intellectual Property Office, there is no need to submit a request for confidentiality review.