IP Blog


The Doctrine of Equivalents Fails to Save Patent Infringement Suit: Ethicon Endo-Surgery, Inc., et al, v. Covidien LP

Following a bench trial, the District Court of Massachusetts held that Ethicon’s “shepherd’s hook” design for finger actuation of a forceps is not equivalent to a “finger loop” claimed by Covidien’s patent no. 9,241,759, and thus Covidien had failed to establish infringement for Ethicon’s Enseal X1 Large Jaw vessel sealer. Ethicon Endo-Surgery, Inc. v. Covidien LP, No. 16-12556-LTS (D. Mass.,...

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