A closely divided U.S. Supreme Court overturned a $79.5 million punitive-damages award against Altria Group's Philip Morris USA unit, in what is being seen as a victory for both the tobacco company and the corporate world.

The high court voted 5-4 to overturn the Oregon jury verdict, ruling it violated earlier high court decisions on limits to punitive damages. The decision could further curb the size of product liability awards against companies beyond new limits the high court outlined in its 2003 State Farm ruling.