Crude oil prices bounced back in Asian trade, today, but gains were limited as demand uncertainties and economic woes in the eurozone weighed on investors. New York's benchmark futures contract, light sweet crude for April delivery, added 10 cents, to 78.80 dollars a barrel. It had hit an intra-day high of 80.62 dollars yesterday, the highest level since mid-January. London's Brent North Sea crude for April rose 20 cents, to 77.90 dollars a barrel.