It might be cheaper to license the patents, but if they managed to buy a controlling interest in the company, they would also then stand to profit from Masimo's

It might be cheaper to license the patents, but if they managed to buy a controlling interest in the company, they would also then stand to profit from Masimo's licensing arrangements with other companies. That is, they would be purchasing a revenue-generating asset. And after this lawsuit, I'm sure Masimo will have more revenue, as other smaller companies realize there is no way to win against them, since even Apple lost.