The patent application confidentiality review procedure refers to a review procedure that needs to be carried out in accordance with relevant regulations when the applicant intends to apply for a patent abroad for an invention created in the country to determine whether the patent application itself involves national security or major interests . For the sake of national security, most countries in the world have formulated corresponding confidentiality review systems. Patent applicants need to submit a request for confidentiality review to their own intellectual property management agencies before filing patent applications in foreign countries, and they can only do so after meeting the corresponding conditions. Apply to a foreign country.
- In Canada, only government employees need to obtain the permission of the minister of the government department when submitting patents to foreign countries, and there is no other confidentiality review request system.