National Patent Application
Patent protection is generally national, that is, a patent application made in our country is protected only in our country.If the patent application is to be protected in the international arena, basically one of the 3 ways should be preferred.
Registration in the countries where protection is requested, applying directly to the country office
Registration request to WIPO in the countries party to the patent cooperation treaty (PCT)
Application with the European Patent System (EPC)
This method should be preferred if protection is desired in 2-3 countries, which should be considered in national patent applications. Patent or utility model applications can be made according to the legislation of the country where protection is requested. Some countries do not have utility model protection.
Another is to work with an official patent attorney in the country where protection is sought. Usually this is mandatory.
If protection is desired in more than 3 countries, preferring this method is a way that will bring more burden both in terms of time and money. PCT or EPC system may be preferred instead.