Samsung is pressing the US Court of Appeals for the Federal Circuit to uphold an October ruling which denied Apple a pretrial sales ban on Samsung's Galaxy Nexus smartphone
, Reuters reports. Apple has requested an "en banc" review, pushing all nine Federal Circuit judges to look at the ruling again. In a Samsung filing submitted last Friday, however, Samsung argues that Apple lacks the evidence to show a "causal nexus" between a patented search function and iPhone sales that would warrant a Galaxy Nexus ban. The October ruling used "well established" reasoning in line with Supreme Court precedents, Samsung elaborates.