Bulgaria: taking a PCT application to grant costs an estimated US$3,630, plus about US$8,004 in renewal fees over the patent's life. The PCT national phase for Bulgaria must be entered within 31 months of the earliest priority date. A European patent, granted by the European Patent Office, can also be validated in Bulgaria; most patent protection there is obtained this way. It is also one of the world's leading exporters of munitions and ammunition.
Most patent protection in Bulgaria is obtained through the European Patent Office: a European patent validated in Bulgaria. The figures on this page count only applications filed directly with Bulgaria's own patent office, so they understate its market. See Europe (EPO, 39 states).
Goods where Bulgaria is among the world's 3 largest exporters, has at least 15% of world exports, or that make up at least 25% of its own exports - of at least US$500m a year.
Our estimate is about US$3,630 to take a PCT application to grant in Bulgaria. That is about US$1,500 in official fees and US$2,130 in attorney fees. By stage: filing US$1,080, search US$300, examination request US$700, office action response US$650 and grant / issuance / publication US$900 (one office action response included). Renewal fees over the patent's life add an estimated US$8,004. These are estimates only, for a standard application (10 claims, 30 pages, a company applicant): the actual cost depends on the law firm and the application. Request a quote from a law firm on this site for an exact price.
The PCT national phase for Bulgaria must be entered within 31 months of the earliest priority date. A European patent, granted by the European Patent Office, can also be validated in Bulgaria; most patent protection there is obtained this way.
Bulgaria's GDP is US$130.8bn, of which services US$82.8bn, industry US$27.7bn (of which manufacturing US$13.0bn) and agriculture US$3.2bn. Spending a year: households US$76.5bn and health care US$8.1bn. Bulgaria's exports of goods came to US$52.0bn in 2024. Its 10 largest exports were refined petroleum products (US$3.4bn, 6% of its exports, #36 in the world), munitions and ammunition (US$2.4bn, 5% of its exports, #2 in the world), refined copper (US$1.9bn, 4% of its exports, #12 in the world), unrefined copper (US$1.6bn, 3% of its exports, #4 in the world), wheat (US$1.4bn, 3% of its exports, #11 in the world), electricity (US$1.2bn, 2% of its exports, #19 in the world), packaged medicines (US$1.2bn, 2% of its exports, #29 in the world), natural gas and LPG (US$965m, 2% of its exports, #36 in the world), precious metal ores (US$874m, 2% of its exports, #7 in the world) and insulated wire and cable (US$674m, 1% of its exports, #40 in the world). Where products are made, a patent there can stop infringing copies being made, not only being sold.
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Find the best countries for your patentPatent publications and PCT national phase entries: averages over recent years. Exports: customs trade statistics; re-export hubs are left out. Costs are estimates.