Anyone following technology news is likely to have seen the phrase patent troll pop up with increasing frequency over the past several years as these litigious entities become more and more of a problem. The phrase patent troll is the more colloquial term for patent assertion entities — companies that use lawsuits to force others into licensing their patents, but dont create any products of their own. Now the popular video series on copyright and creative transformation Everything is a Remix has returned with a special video explaining what patent trolls are and why theyre a problem as means to pushing for strengthened reform legislation to move through Congress.