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www.fdanews.com/articles/123764-covidien-files-patent-infringement-lawsuit-against-ethicon

Covidien Files Patent Infringement Lawsuit Against Ethicon

January 18, 2010
Covidien, a provider of healthcare products, has reported that, through its family of companies, a lawsuit has been filed in the US District Court for the District of Connecticut against Ethicon Endo-Surgery, a Johnson & Johnson company, relating to Ethicon’s Harmonic line of ultrasonic surgical products.
American Chronicle