In the final quarter of 2017, a total of 981 patent cases were filed in U.S. District Courts, a 1.3% decrease over the previous quarter’s total of 994 cases. Cases filed in the calendar year 2017 (4,057 cases) represent a decline of 10.3% over 2016 (with 4,529 cases).
Perhaps the most notable event of 2017 was the Supreme Court issuing its opinion in T.C. Heartland on May 22, holding unanimously that, under 28 U.S.C. § 1400(b) (the statute governing venue in patent suits), a domestic corporation “resides” only in its state of incorporation. Since that landmark decision, patent case filings trends have responded dramatically: the number of cases filed in the Eastern District of Texas has significantly declined and been overtaken by the number of cases filed in the District of Delaware.



