The movie Blade Runner is based on the novel Do Androids Dream of Electric Sheep? written by Philip K. Dick. The androids or replicants in question were Nexus-6 series. I am still confused how a phone, however awesome, is going to evolve into a sophisticated killing machine in only five more revisions. In all seriousness, it is a difficult case to make that brands of fictional products in novels automatically have any trademark protection. As a side note, I believe Google’s use of DROID is under a license from Lucasfilms.
Hat tip to the always interesting boingboing.net