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.
- For applications classified as classified by the Bulgarian defense authorities
- Timing of submission: BPO is automatic, no need for the applicant to initiate a request
- Filing Language: Bulgarian
- Submission method: electronic form/paper form
- Official Fee: None