In Lighting Ballast Control LLC v. Phillips Elec. N.A. Corp., the Federal Circuit en banc held that claim construction is subject to de novo standard of review. Full text of the opinion is available here.
In Ringe & Pinion Svc. v. Arb Corp., the Federal Circuit held that there is no foreseeability limitation on doctrine of equivalents. Full text of the opinion is available here.
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