The primary purpose of a patent law system should be to enhance economic efficiency, in particular by providing incentives for making inventions. The conventional wisdom is that patents should therefore be strictly exclusive rights. Moreover, in practice patent owners are almost never forced to give up their right to exclude others and receive only a certain amount of remuneration with, for instance, compulsory licensing. Other economically interesting patent-law objectives, however, include the transfer and dissemination of knowledge. Mechanisms exist by which the patent owner decides if he...

In considering how to improve the patent system and enhance economic efficiency, this analysis deploys research from law, business administration, and economics to show how some patents are better protected by property law and others by liability legislation.