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Doctrine of Equivalents Appeals Chemicals

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Court Questions Applicability of Function Way Result Test In Chemical Cases

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In Mylan Institutional LLC v. Aurobindo Pharma Ltd., the Federal Circuit reviewed a preliminary injunction based in part on a finding of likelihood of success in establishing infringement under the doctrine of equivalents....more

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Recent Guidance from the Federal Circuit on the Doctrine of Equivalents in Cases Involving Chemical Compositions

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In Mylan Institutional LLC, et al. v. Aurobindo Pharma Ltd., et al., Case No. 2017-1645, the Federal Circuit affirmed the district court’s grant of a preliminary injunction as to one of three patents-in-suit, while finding...more

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Federal Circuit’s Primer on Equivalence Infringement of Chemical Process Patents

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In an appeal characterized as “unusual,” the Federal Circuit affirmed the grant of a preliminary injunction, holding it likely that plaintiff patent holder would succeed on the merits its claim of infringement of a patent...more

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