FDAnews
www.fdanews.com/articles/142903-merck-canada-sues-to-block-mylan-rsquo-s-generic-singulair

Merck Canada Sues to Block Mylan’s Generic Singulair

January 4, 2012
Merck Canada sued Mylan Pharmaceuticals in New Jersey federal court for allegedly infringing a Merck patent when it sought U.S. Food and Drug Administration approval for a generic version of the asthma treatment Singulair.
Law360