iRobot prelim injuctions against Shenzhen Silver Star affirmed on all counts iRobot has received full affirmation of four preliminary injunctions against Chinese company Shenzhen Silver Star Intelligent Technology Co., Ltd. with the District Court of Dusseldorf. Following the parties' full briefing and a hearing on infringement of the four patents, the District Court of Dusseldorf upheld the previously granted preliminary injunctions against Shenzhen Silver Star prohibiting the distribution of vacuum cleaner robots of the types XR210, M-H688 and M-788 within Germany. The District Court has affirmed that the question of infringement has been answered in favor of iRobot. Shenzhen Silver Star has brought separate nullity actions against the four patents before the Federal Patent Court in Germany. However, the District Court's decisions reflect that Shenzhen Silver Star's challenges to patent validity were deemed insufficient to merit lifting even one preliminary injunction.