I don't disagree, but I don't think you can bring a legal case to a judge that a company can't exist.
But if every one of their threats resulted in someone dragging them into an expensive fight over whether or not that patent was valid, maybe eventually they'd just go bankrupt from the legal fees.
Essentially, use their own strategy against them. Whenever they sue someone, they have two choices: roll over and let the patent get invalidated, or fight an expensive lawsuit against a party that refuses to settle.
Where is the satisfaction of having a troll bankrupted by litigation? If the troll went bankrupt, it probably means:
* The lawyers got paid so much money there is no more money left to pay the receptionist and the power company and the copier rental.
* The troll is protected from paying any damages to the legal team that defeated them.
So the lawyers/executives suck up all the money and move on, leaving a wake of destruction behind them. In many cases, that should be considered criminal.
But if every one of their threats resulted in someone dragging them into an expensive fight over whether or not that patent was valid, maybe eventually they'd just go bankrupt from the legal fees.
Essentially, use their own strategy against them. Whenever they sue someone, they have two choices: roll over and let the patent get invalidated, or fight an expensive lawsuit against a party that refuses to settle.