Patent (2018) - J.T. Pronk (inventor), Jack Pronk (inventor), Jack T. Pronk (inventor), Antonius J.A. van Maris (inventor), A.J.A van Maris (inventor), A.J.A. van Maris (inventor), Ton van Maris (inventor), M.A. van den Broek (inventor), J-M. Daran (inventor), Jean Marc Daran (inventor), Jean-Marc Daran (inventor), J.G. Daran (inventor), M.D. Verhoeven (inventor), J.M. Bracher (inventor)