When it was one or two companies it may not have made sense for them to file a suit. They may have sent out notices to the companies asking for a license. As more and more companies jump into the trigger game, using their IP to make money, the stakes get higher. I kind of have a feeling this is what happened, just look at all of the new(ish) companies in the trigger business now.If it were just one company I could see it being an issue of them not wanting to pay, but 12 companies at one time either they have been very lenient or they are just going full retard now. I will wait for more info to come available before I totally write them off though.
Mossberg purchased this patent in 2011.