The scope of confidentiality stipulated in Article 4 of the Patent Law is inventions and creations involving national security or major interests.
If the applicant believes that its invention or utility model patent application involves national security or major interests and needs to be kept confidential, it should make a request for confidentiality in the request while filing the patent application, and its application documents should be Submit on paper. The applicant may also submit a confidentiality request before the invention patent application enters preparation for publication, or before the utility model patent application enters preparation for authorization announcement.
If the applicant has determined that the content of his application involves national security or major interests and needs to be kept confidential before making a confidentiality request, he should submit relevant documents determining the confidentiality level by the relevant departments.