Presumably it's an "international patent" filed in Brazil.
You don't have to file your patent in every jurisdiction. There have been treaties for recognising each others intellectual property rights since the late 19th century and Brazil has been part of these from the start.
You don't have to file your patent in every jurisdiction. There have been treaties for recognising each others intellectual property rights since the late 19th century and Brazil has been part of these from the start.
https://en.wikipedia.org/wiki/List_of_parties_to_internation...