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Sanofi-Aventis Dealt A Setback

Law360 (February 9, 2007, 12:00 AM EST) -- Sanofi-Aventis was dealt a blow in its attempt to prevent a generic version of its popular anti-clotting drug Lovenox when a U.S. District Court judge ruled that the drug maker was deceptive when it applied for the patent for the drug.

Judge Mariana R. Pfaelzer ruled Thursday that Sanofi-Aventis’ patent for Lovenox was unenforceable because the drug maker intended to deceive the U.S. Patent and Trademark Office during its patent application.

The patent covers mixtures comprising the drug enoxaparin. During its patent application, Sanofi-Aventis needed to...
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