This paper discusses notable intellectual property law caselaw in the United States in 2013. The Supreme Court decided four patent cases, holding that isolated human DNA is not patentable; that lawsuits alleging legal malpractice in patent cases are to be litigated in state, not federal, court; that seeds grown from genetically modified patented seeds cannot be resold; and that reverse-payment settlements between brand name and generic pharmaceutical companies are subject to scrutiny under the anti-trust laws. The one trademark case the Court decided addressed an issue with more impact in the patent area: whether a rights holder can destroy jurisdiction in a declaratory judgment case, by promising not to sue. First sale, or exhaustion, prov...