In January, Whirlpool filed a patent infringement suit with the ITC against LG, claiming that LG's refrigerators sold in the U.S. infringed on five Whirlpool patents, according to a statement from LG.

However, the company voluntarily withdrew suits over two of the five patents in the case in May, and the ITC's partial termination decision came in June, LG said. The three other suits are still pending.

"We submitted documents with the ITC which show the five patents do not belong to Whirlpool," an LG Electronics spokesman told Dow Jones Newswires.

In May, Whirlpool also filed a suit against LG with the U.S. District Court of Delaware over the infringement of seven patents. It has now abandoned a suit regarding one of those patents, the LG spokesman said.