The Brazilian invention patent application procedure is basically the same as that in my country. The process is: patent application, formal examination, early disclosure, substantive examination, and patent authorization.
The difference is: the formal examination of the patent will be conducted within 60 days of submitting the application; after the applicant has paid the examination fee, he or she shall file an application for substantive examination of the patent within 36 months from the date of application; a foreigner who does not have a residence in Brazil shall file a patent examination application. Patent applications need to be entrusted with an agency, and the power of attorney does not need to be notarized or authenticated; annual fees will be paid starting from the third year from the date of application.
The application methods for Brazilian invention patents are PCT application in the country and Paris Convention application in the country.