Trade mark and IP law in Bulgaria and the EU
Bulgarian Patent Office trade mark fees in euro from 1 January 2026: filing, renewal, opposition, appeals, revocation and invalidation, and a comparison with an EU trade mark.
Using a Bulgarian trade mark as the basic mark for a Madrid international registration: who is eligible, the EUR 76.69 BPO fee compared with EUIPO’s EUR 300, and the five-year dependency.
Revocation of a trade mark before the Bulgarian Patent Office: grounds, the EUR 168.73 fee, proof of genuine use, effects and judicial review explained.
Before the Patent Office, foreign natural and legal persons must be represented by a an attorney or industrial property representative authorised to practice in Bulgaria.