This is where out US patent group, judicial branch, executive branch, I don't know who exactly, needs to step in and say "YOU DID NOT INVENT REMINDING PEOPLE TO DO STUFF!" and prevent these companies from spending (wasting) money and time on winning the patent to do it. Their struggle to win that patent is not value adding for the country in any way whatsoever, but they'll do it anyway for their own gain. It's wasted money that could better go into R&D, for example.
So tell them now, level the field... and prevent all that wasted effort.