Pfizer learned the hard way not to take dependent claim form for granted. The Court of Appeals for the Federal Circuit, in Pfizer et al. v. Ranbaxy Laboratories (06-1179), held that a violation of § 112, ¶ 4 renders a patent invalid even if it would have been merely objected to (and not rejected) by […]

Johnson & Johnson’s Alza drug unit sued Wyeth (Alza Corporation v. Wyeth, Wyeth Pharmaceuticals, Inc. Case No. 9:06-cv-00156-RHC), saying that Effexor XR infringes a patent for a method of administering antidepressants. Effexor is Wyeth’s biggest product and the world’s best-selling antidepressant. Global sales of the drug were $918 million in the second quarter and $3.5 […]