The point is that they don't want to go to court, they send demand letters and ask for a license fee under explicit or implicit threat of litigation, hoping tha

The point is that they don't want to go to court, they send demand letters and ask for a license fee under explicit or implicit threat of litigation, hoping that in a majority of cases their targets would pay because even if they have a good chance of winning, or the damages would be low, the litigation itself is too costly and risky.