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E-Z-EM Fights Back In Fluid Injector Patent Suit

Law360 (October 2, 2007, 12:00 AM EDT) -- Medical products company E-Z-EM Inc. on Monday filed an answer and counterclaim against two Tyco Healthcare Group LP subsidiaries, saying their medical fluid injector patent should be declared invalid.

E-Z-EM filed its answer and counterclaim against Mallinckrodt Inc. and Liebel-Flarsheim Co. in the U.S. District Court for the Eastern District of Texas. E-Z-Em also wants the court to declare that the manufacture, use and/or sale of the EmpowerCT and EmpowerCTA injectors doesn't infringe any valid and enforceable claim of the patent, and that the plaintiffs' claims...
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