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Pfizer Sues Cobalt Over Lipitor Patent

Law360 (December 10, 2007, 12:00 AM EST) -- Pfizer Inc. is alleging that when Cobalt Pharmaceuticals Inc. filed an Abbreviated New Drug Application for a product whose active ingredient would be atorvastatin sodium, the Canadian generics outfit infringed a patent covering the blockbuster cholesterol drug Litpitor.

Pfizer and a group of subsidiaries including Warner Lambert Co. filed a suit against Cobalt on Friday in federal court in Boston. The suit accused Cobalt of infringing a patent owned by Warner Lambert.

The same plaintiffs filed a suit against Cobalt in Delaware on Thursday. That suit...
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