doctrine-of-equivalents

5 cases — ← All topics

Case Title Lower Court Docketed Status Flags Tags Question Presented
24-1137 NexStep, Inc. v. Comcast Cable Communications, LLC Federal Circuit 2025-05-06 Denied Response Waived doctrine-of-equivalents expert-testimony federal-circuit jury-verdict patent-infringement patent-law Whether a patentee must in every case present 'particularized testimony and linking argument' to establish infringement under the doctrine of equivale…
23-1142 Tarun Surti v. Fleet Engineers, Inc. Federal Circuit 2024-04-22 Denied attorney-fees cease-and-desist compensation doctrine-of-equivalents non-infringement patent-compensation patent-rights tortious-interference Whether the Court erred in denying proper compensation, including 'Cease and Desist order', requested by the patentee
19-1058 Hospira, Inc. v. Eli Lilly and Company Federal Circuit 2020-02-26 Denied Amici (1) claim-drafting claim-narrowing doctrine-of-equivalents literal-infringement patent-claim-interpretation patent-claims patent-prosecution-estoppel patent-prosecution-history-estoppel patent-scope prior-art-rejection tangential-relation tangential-relation-exception Whether a patentee may recapture subject matter via the doctrine of equivalents under the 'tangential relation' exception
19-1061 Dr. Reddy's Laboratories, Ltd., et al. v. Eli Lilly and Company Federal Circuit 2020-02-26 Denied Amici (2) claim-amendment doctrine-of-equivalents festo-corp-v-shoketsu festo-corp-v-shoketsu-kinzoku-kogyo-kabushiki-co patent-claim patent-infringement patent-law patent-law-doctrine-of-equivalents patent-prosecution prosecution-history-estoppel tangential-exception Whether patent owners may recapture subject matter they could have claimed in prosecution but did not, by arguing that they surrendered more than they…
19-1062 CJ CheilJedang Corp., et al. v. International Trade Commission, et al. Federal Circuit 2020-02-26 Denied Amici (1) claim-amendment doctrine-of-equivalents festo-corp-v-shoketsu innovation patent-infringement patent-law prosecution-history-estoppel public-notice public-notice-function tangential-relation Whether, to avoid prosecution history estoppel under Festo Corp. v. Shoketsu Kinzoku Kogyo Kabushiki Co., 'the rationale underlying the amendment' mus…