This is a summary. To read the whole story subscribe to BostonGlobe.com
Bedford-based robot maker iRobot Corp. has sued four European companies in a German court, alleging that the companies violated five of its patents used in its Roomba home-cleaning robot. The suit alleges that a robotic vacuum cleaner sold in Germany, the Solac Ecogenic AA3400, incorporates technology developed by iRobot for its Roomba vacuum cleaner. iRobot says that the Ecogenic violates five of iRobot’s German patents, covering a variety of the Roomba’s features, such as its ability to automatically navigate through rooms, or clean rooms at a particular time of day.