Study: patent trolls have cost innovators half a trillion dollars

arstechnica.com/tech-policy/news/2011/09/study-pa...s-have-cost-innovators-half-a-trillion-bucks.ars view page cached page
A new Boston Unviersity study estimates that patent trolls have cost defendants $83 billion per year since 2007, and $500 billion total since 1990. The problem seems to be most severe in the software industry.



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