More than a dozen real estate companies -- including Re/Max, Century 21 and Keller Williams -- have been hit with patent infringement lawsuits by a company that does not maintain a website or offer any products or services but holds patents on a "real estate disclosure reporting method." As a company that earns, or plans to earn, the majority of its revenue from the licensing or enforcement of its patents, Delaware-based Property Disclosure Technologies LLC is characterized as a "nonpracticing entity," or NPE, by PatentFreedom, a company that tracks NPEs for its subscriber clients. Critics often apply the pejorative term "patent troll" to such companies -- a label PatentFreedom considers "unhelpful" given the many differences between various companies and individuals who have sou...
Feb 5, 2014 by Andrea V. Brambila
Aug 17, 2011 by Inman