Patent litigation costs involving NPEs in the U.S. 2005-2011
The statistic shows a the aggregated accrued direct costs of patent litigations involving NPEs in the United States from 2005 to 2011. NPEs are popularly known as "patent trolls", firms who do not produce goods and services from their patents, but use them to sue other companies who do. In 2009, the total costs for defendants in NPE patent litigations amounted to about 13.7 billion U.S. dollars.