U.S. top court rejects Dow bid to restore $30.5 million in patent damages

The Dow Chemical logo is displayed on a board above the floor of the New York Stock Exchange shortly after the opening bell in New York, December 22, 2015. REUTERS/Lucas Jackson

WASHINGTON (Reuters) - The U.S. Supreme Court on Monday rejected a Dow Chemical Co DOW.N bid to salvage $30.5 million in patent infringement damages in a lengthy legal fight with Nova Chemicals Corp[INPTVN.UL] over two patents relating to plastic film.

The court’s refusal to hear the case leaves in place a December 2015 ruling by the U.S. Court of Appeals for the Federal Circuit throwing out the damages award.

At issue were $28 million in supplemental damages plus interest that a federal judge awarded to Dow for Nova’s infringement of its patents from January 2010 to October 2011, when the patents expired.

The court's action does not affect the $61 million in damages that a jury in 2010 awarded to Dow for Nova's infringement of the patents prior to 2010. Dow is in the process of merging with Dupont.DD.N

Reporting by Lawrence Hurley; Editing by Will Dunham