In the latest skirmish in the companies' long-running patent battle, LG Electronics has filed suit against Whirlpool, alleging that the company infringed on a pair of its refrigerator patents.
According to the Wall Street Journal, the suit was filed in the U.S. District Court of New Jersey. The suit concerns a patent related to the refrigerators' ice-making system.
The companies have been litigating with one another over refrigerator patents for years, with Whirlpool suing LG in early 2008. The International Trade Commission recently ruled that for LG in another patent dispute, the company said.