Applying for a patent abroad requires paying considerable fees to foreign patent offices and patent agents, and it is settled in US dollars.
According to the practice of patent agencies, it costs an average of 4000-5000 dollars to apply for a patent in a country at present. If you calculate by five countries, you need to prepare about 20,000 to 25,000 US dollars. Applicants who submit international applications also need to pay the above fees (but the payment time can be delayed by 8 months to 18 months).