The bitcoin logo is not patented, we all own bitcoin, it is a decentralized entity. The Brazilian brand are talking crap, ignore them.
true, Bitcoin doesn't have any patents because satoshi never took care of those patents...
if a company uses the Bitcoin logo in its company then no one will sue that company. otherwise, you have to be careful because it's certain that the company is only taking advantage of Bitcoin's fame and wants to profit from it.