file wrapper estoppel
file-wrapper estoppel. See prosecution-history estoppel under ESTOPPEL.
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Search Results for: prosecution-history estoppel
doctrine of equivalents
Patents. A judicially created theory for finding patent infringement when the accused process or product falls outside the literal scope of the patent claims. • The doctrine evolved to prevent parties from evading liability for patent infringement by making trivial changes to avoid the literal language of the patent claims. Graver Tank & Mfg. Co.
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festo doctrine
Festo doctrine. Patents. The rule that the voluntary narrowing of a patent claim may give rise to prosecution-history estoppel. Festo Corp. v. Shoketsu Kinzoku Kogyo Kabushiki Co., 304 F.3d 1289 (Fed. Cir. 2003). [Cases: Patents 168(2.2). C.J.S. Patents § 297.]
doctrine of equivalents
doctrine of equivalents. Patents. A judicially created theory for finding patent infringement when the accused process or product falls outside the literal scope of the patent claims. • The doctrine evolved to prevent parties from evading liability for patent infringement by making trivial changes to avoid the literal language of the patent claims. Graver Tank
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