These are companies whose entire business model is patent litigation. (vox.com)
Faced with competitors eager to deploy giant patent arsenals as competitive weapons and patent trolls whose entire business model depends on extracting settlements, many small businesses feel obliged to fight back by amassing a few patents of their own — whether or not they really need the protection of a limited monopoly. (eff.org)
Mechanical Turk's entire business model hinges on persuading large numbers of workers to do tiny tasks for pennies at a time. (newscientist.com)