It doesn't need to make sense
Wile E: you're assuming that these patents make some sort of sense and actually embody some sort of innovation.
In reality anybody can file a patent for anything software-based and have it approved. Then it's up to the patent victim to prove (and pay the needed legal fees) that the patent is obvious/has prior art/etc. That's why Microsoft keeps the details of the claimed infringement a secret. If they let the cat out of the bag then a few interested parties with deep pockets can start challenging the patents in court. As long as nobody knows what the patents are, they can be used for FUD.
So using *BSD won't help. Just take any 40-year-old software technique, tack "on a mobile phone" on the end, and you've got a patentable innovation useful for patent trolling. "Multitasking", not patentable. "multitasking on a mobile phone", a goldmine! *BSD on a phone infringes too.


