How should property rights be allocated when one party, without authorization, substantially improves the property of another? According to the doctrine of accession, a good-faith improver may take title to such improved property, subject to compensating the original owner for the value of the...

Patents on biomedical research tools - technological inputs to experimentation - may inhibit scientific inquiry and the development of life-enhancing therapies. Various "public law" approaches to address this challenge, such as a common law experimental use exception to patent infringement, have...