definiens: shall mean all patents, patent applicati.ons and inventi.on discl.osures the subject .of which is an inventi.on : ( i ) c.onceived .or reduced t.o practice s.olely by Bi.ogen in the c.ourse .of perf.orming the Research Program ; ( ii ) c.onceived .or reduced t.o practice t.o practice S.olely by Bi.ogen during the Exclusivity Peri.od in the c.ourse .of activities directed t.o the disc.overy, research .or devel.opment .of C.omp.ounds f.or use in the Field ; .or ( iii ) that is a C.omp.ound described in SectiDn 1.6(ii ) bel.ow ; as well as any divisi.ons, c.ontinuati.ons, c.ontinuati.ons - in - part, reissues, reexaminati.ons, extensi.ons .or .other g.overnmental acti.ons which extend any .of the patent applicati.ons .or patents in ( i ), ( ii ) .or ( iii ) ab.ove, and any substituti.ons, c.onfirmati.ons, registrati.ons, revalidati.ons .or f.oreign c.ounterparts .of any .of the f.oreg.oing