Yeah, lol, it's mentioned that there were rumors that the reason Wey-Yu was so technologically advanced was because it got its tech through alien technology. Assuming Fox nixes all the Aliens comics and novels that introduces new species of aliens intelligent enough to produce technology then the only alien species that we have met to produce such tech are the Predators and the Engineers; there's the obvious reference to Pred tech in AVPR and how it influenced future human space travel, but there's no evidence at all of human acquisition of Engineer technology especially since their tech is bio-organic.