After a five-week trial, a federal jury in San Francisco issued a defense verdict in a $500 million antitrust class action filed against two South Korean companies accused of conspiring to fix the price of ramen noodles.

Food retailers and distributors in 23 states sued Nongshim Co. and Ottogi Corp. in an antitrust case alleging that South Korea’s two leading ramen producers conspired for more than a decade to fix, raise, maintain or stabilize the price of Korean noodles sold in the U.S.