I have seen anti-condensation coatings for glass, but as far as I know they're designed to cause any moisture that does form on them to sheet rather than bead. They do not, however, actually prevent condensation, and I don't see how any product could (other than extreme insulation, of course). The formation of condensation is an issue of physics; warm moist air meets cold surface and since cold air holds less moisture than warm, the moisture forms on the cold surface. On the other hand, engineers are pretty clever, so if there's a way to prevent this, it may be possible, even if I can't figure out how.
This question is actually prompted by some reviews of some ice packs I recently purchased from Amazon, in which reviewers complained about condensation, which seems like a nonsense complaint.
Sorry about the tag, but I tried "condensation," "dew," "moisture," "water," and maybe a couple of others and got no match.