Niemantsverdriet, K. (Inventor), Eggen, J. H. (Inventor) & van Essen, H. A. (Inventor), 4 Oct 2017, Patent No. EP3226660A1, Priority date 31 Mar 2016, Priority No. EP 16163093
Eggen, B. (Inventor), Hoven, van den, E. A. W. H. (Inventor), Loenen, van, E. J. (Inventor) & Dijk, E. O. (Inventor), 18 Apr 2002, Patent No. WO2002086651