LG Electronics Inc., facing patent-infringement claims brought by Sony Corp., fired back with complaints seeking to block sales of Sony Bravia televisions and PlayStation 3 consoles in the U.S.
LG claims Sony’s high-definition TVs infringe four patents, while products with Blu-ray players including the PlayStation infringe four others, according to two complaints filed with the U.S. International Trade Commission in Washington on Feb. 4.