On July 14, Chinese drone maker DJI Technology filed a patent infringement lawsuit against Textron in the US District Court for the Eastern District of Virginia, accusing Textron of infringing four of its US patents involving the control, communications and navigation of drones. On the same day, Textron also filed a counterclaim in the US District Court for the Northern District of Texas, seeking a judgment that it does not infringe any of DJI's patents. This is the second round of battle between the two sides in the United States after Textron won a patent lawsuit against DJI in April. A jury found then DJI had infringed two of Textron’s US patents involving the automatic hovering function and data transmission technology. Textron won $278.9 million in damages.