Mylan Inc. ( NASDAQ: MYL ) recently prevailed in the United States District Court for the Northern District of West Virginia in a patent dispute involving Perforomist® (formoterol fumarate) Inhalation Solution, which has as the active ingredient a bronchodialating compound. The district court confirmed the validity of all patents asserted by Mylan. At issue were U.S. Patent Nos. 6,667,344 ; 6,814,953 ; 7,348,362 ; and 7,462,645, which cover Perforomist through June 2021. Mylan previously sued Teva alleging that Teva's Abbreviated New Drug Application (ANDA) for this product infringed four Mylan patents covering Perforomist. After a full trial, the Court entered a judgment finding infringement of the patents-in-suit, rejecting Teva's defenses, and enjoining Teva from making, using, offering to sell, selling or importing the inhalation product described in Teva's ANDA.