ACTELION PHARMACEUTICALS LTD; HUBSCHWERLEN, Christian; RUEEDI, Georg; SURIVET, Jean-Philippe; ZUMBRUNN ACKLIN, CorneliaHubschwerlen, Christian; Rueedi, Georg; Surivet, Jean-Philippe; Zumbrunn Acklin, Cornelia Patent: WO2013/68948US2015/51188 A1A1, 20132015