establishing contractual obligations by {HEAD ~ at least some contributors} of {TAIL ~ the idea contributions} to the database to transfer property rights to inventions derived at least in part from the contributed ideas to a transferee 
of
establishing contractual obligations by { HEAD ~ at least some contributors } of { TAIL ~ the idea contributions } to the database to transfer property rights to inventions derived at least in part from the contributed ideas to a transferee
OTH OTH OTH OTH HEAD HEAD HEAD HEAD HEAD HEAD HEAD HEAD REL TAIL TAIL TAIL TAIL TAIL TAIL TAIL OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH