After almost two years of legal battle, U.S. based Pfizer Inc. did not convince South Korea Supreme Court with their arguments, therefore ruled against its protection. Lipitor is Pfizer´s world`s most selling drug.

The ruling favors six local companies that already market generic versions. The patent is owned by Warner-Lambert Co., the New York- based developer of Lipitor, which Pfizer bought for $115 billion 10 years ago.

Among the local drug makers are CJ Corp., Dong-A Pharmaceutical Co. y Boryung Pharmacuetical Co. On the other hand, eight more companies will benefit from the court´s ruling.