The patent/ utility model applications must be registered in the foreign countries as well, because they are valid only in the country where they are made. This is the reason that foreign applications are made and patent protection becomes valid in these countries.
In addition to the application made with the aim that your patent application is valid outside of Turkey, it is also necessary to perform the process of monitoring your patent in foreign patent bulletins. By this process there is possibility of an appeal on the grounds of applying within valid time of the publication for the similar patent. You should not neglect to have a monitoring service to ensure full protection for your patents that you want to apply for.