Sort of. Eastern District of Texas for quite a while was the busiest district for patent litigation, but it wasn't particularly a patent troll magnet. It was a

Sort of. Eastern District of Texas for quite a while was the busiest district for patent litigation, but it wasn't particularly a patent troll magnet. It was a patent litigation magnet in general. You tended to hear more about the troll cases because "patent troll sues tech company" is way more likely to come up on tech sites than something like "wastewater control valve maker sues other wastewater valve maker over patent".