Pfizer Faces Setbacks In Patent Battle Over Viagra

Law360, New York (February 19, 2004, 12:00 AM EST) -- Pfizer has met with setbacks in Canada and the U.S. its effort to protect in its $1.7 billion erectile dysfunction drug Viagra from competition from Eli Lilly’s Cialis.

The U.S. drug maker lost a motion to block sales of Cialis in Canada last week. Meanwhile, a U.S. federal judge has put a patent infringement lawsuit on hold while the U.S. Patent & Trademark Office re-examines the broad method-of-use patent for Viagra.

Last week, a Canadian federal judge rejected Pfizer's motion to halt sales of Cialis, developed...
To view the full article, register now.
Law360 Pro Say Podcast
Check out Law360's new podcast, Pro Say, which offers a weekly recap of both the biggest stories and hidden gems from the world of law.