A Delaware federal judge on Monday blocked plaintiffs in a patent infringement suit against drugmaker Teva Pharmaceuticals USA from amending their complaint to reflect corrections made to a patent for a nasal spray.
U.S. District Chief Judge Leonard P. Stark of the District of Delaware said Meda Pharmaceuticals Inc. and Cipla Ltd. had dragged their feet in asking the court for leave to assert a certificate of correction in an amended complaint, and informal discussions to resolve the issue did not meet the good-cause requirement of showing diligence, he said.
