Mealey's (March 4, 2021, 2:34 PM EST) -- SAN FRANCISCO — A group of tobacco companies in a March 1 appellant brief tell the Ninth Circuit U.S. Court of Appeals that Los Angeles County’s ban on flavored tobacco products including menthol is expressly and impliedly preempted by federal law regulating tobacco products and urge it to reverse a district court’s ruling dismissing their challenge to the ban....