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Fish Cases

Prometheus Laboratories Inc. v. Mayo Collaborative Services, et al.

Appellate, Patent Litigation

Fish Cases

Prometheus Laboratories Inc. v. Mayo Collaborative Services, et al.

Appellate, Patent Litigation

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Fish defended Mayo in an action for patent infringement over metabolite assays for 6-mercaptopurine drugs. We argued and obtained summary judgment of invalidity for the client. Appealed to the Supreme Court, which ruled unanimously in favor of Mayo, finding the Prometheus patents described a law of nature, not patentable under Section 101 of U.S. patent law.

In-Depth

Fish defended Mayo in an action for patent infringement over metabolite assays for 6-mercaptopurine drugs. We argued and obtained summary judgment of invalidity for the client. Appealed to the Supreme Court, which ruled unanimously in favor of Mayo, finding the Prometheus patents described a law of nature, not patentable under Section 101 of U.S. patent law.