Ring & Pinion Serv., Inc. v. ARB Corp.
Foreseeability of asserted equivalence at the time of patenting is not a bar to the doctrine of equivalents.
Results for doctrine of equivalence
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Integrated Tech. Corp. v. Rudolph Techs., Inc.
Narrowing amendments related to patentability precludes a patentee from recapturing subject matter surrendered by those amendments via the doctrine of equivalents.