Confidential and confidential state scientific and technological secrets may apply for a confidentiality patent with the approval of the original secrecy organs and units;
Where a confidential or secret national scientific and technological secret applies for an ordinary patent or is converted from a confidential patent to an ordinary patent, it shall go through the decryption procedures first.
When applying to China National Intellectual Property Administration for a secret patent involving state scientific and technological secrets, the applicant shall submit the certification documents issued by the original secrecy organ or unit. The certification documents shall indicate the applicant's name, invention name, classification, confidentiality period, reasons and points of confidentiality, confidential communication address, contact person and telephone number of the confidential unit, and affix the official seal of the confidential unit. If the supporting documents are submitted after the application, the application number shall also be indicated.