This paper proposes a substantive rethink of the modern patent system. The patent system has come under intensive criticism in the past, and many scholars have proposed ways to improve it. Ideas for improvement include, e.g., prior-art bounties, contracting out examination and dynamic fee setting. However, many of these ideas have gone unheeded due to the cost of administering them and the rigidity of the patent system. We explore how distributed ledger technologies enable these major changes.