A couple of cases represent the trouble of characterizing a patent troll who pays the price to retain a patent without ever using whatever it was that was patented. How about we say that a noteworthy car maker contributes a few million dollars adding to another diesel motor. Along the way, it secures 50 licenses on the innovation, however then chooses not to seek after the diesel motor and rather concentrates on half breed motors. A couple of years pass and one of its rivals discharges a diesel motor utilizing the licensed innovation. Is our auto producer a troll on the off chance that it seeks after the contender for patent encroachment, only in light of the fact that it didn’t deliver the diesel motors?

Another issue case that ordinarily emerges is colleges, which are petri dishes of advancement that infrequently make any items. Most colleges do, notwithstanding, have an innovation exchange office that secures patent assurance for developments. On the off chance that a college sees an organization utilizing its protected innovation and methodologies the organization looking for an eminence, is the college a troll that ought to be rebuffed?

Also, a third class is likewise troublesome. Picture a little business that develops another innovation and secures a patent on it. Later, a multinational partnership begins utilizing the innovation. The little business doesn’t have a huge number of dollars to bring a patent encroachment claim so it offers its patent to an outsider who has enough cash to bring the claim. In this David and Goliath situation, little business David required a sling, and the outsider gave it. The outsider may be in the matter of simply gathering promising licenses yet enactment assaulting the outsider patent gatherer hurts the little business and smothers advancement.