Unified Patents and RPX have both released their early numbers on new US patent litigation cases in 2016, confirming what we have known for some time: district court cases fell dramatically, with Unified putting the total number of filings at 4,382 - a drop of 24.8% year-on-year. That is the lowest volume of new cases since 2011 when the America Invents Act (AIA) came into effect and a change in joinder rules led to an immediate increase in the number of suits. According to Unified, disputes at the Patent Trial and Appeal Board (PTAB) saw a slight drop down to 1,723 from 1,793, although last year was still the second busiest on record.

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