Following a federal appeals court's decision to overturn a final judgment for Applera Corp. in Enzo Biochem Inc.'s patent infringement suit over methods for detecting nucleic acids, Applera has asked the district court to stay proceedings while it appeals the ruling to the U.S. Supreme Court. Applera argued in a motion lodged Wednesday in the U.S. District Court for the District of Connecticut that the requested stay is warranted because the pending challenge to the U.S. Court of Appeals for the Federal Circuit's March finding that two of Enzo's asserted patents are not invalid for indefiniteness or anticipation “presents an important question of federal patent law regarding indefiniteness that has not been, but should be, settled by the Supreme Court.