Schosers are undoutedly ingenious. Consider Siegmar of Wald near Messkirch, Germany. Together with three others, he holds a patent on a ‘rotating device for plasma immersion supported treatment of substrates'. The patent was filed on 9 September 1999 and finally issued on 10 December 2002 with the United States Patent number 6490993. It is assigned to the Robert Bosch company. The patent drawing and the patent description explain the uniqueness and use of the devise. Those who still cannot figure out what the invention is about are requested to address themselves directly to the inventor…