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Doctrine Of Equivalents: Is Festo The Right Decision For The Biomedical Industry., Faith S. Fillman
Doctrine Of Equivalents: Is Festo The Right Decision For The Biomedical Industry., Faith S. Fillman
St. Mary's Law Journal
The doctrine of equivalents, which Festo Corp. v. Shoketsu Kinzoku Kogyo Kabushiki Co. threatens to overturn, is an equitable doctrine and should therefore provide patentees and competitors equal and fair protection. Prior to Festo, the Federal Circuit used two approaches: the complete bar rule and the flexible bar rule. Under the complete bar rule, the author must completely copy the patented art for infringement to occur, this is otherwise known as literal infringement. In contrast, under the flexible bar rule, infringement can occur if the product is closely related to the prior art. Federal Circuits have officially adopted the complete …