Generally, yes. Paintball brands that go as far as to patent specific parts of their mask are likely to have put a great deal of work into their designs. There must be a feature that is highly unique in their masks for them to patent it. Thereby they make sure that no other brand can use that design.
On the other hand, this doesn’t mean that all patented designs are practically great as well. Some companies just patent designs that don’t bring much improvement;
The best way to decide if the sort is useful to you is by reading about what it offers in real terms.