Though they derive from the same constitutional source of law, patents and copyrights vest very differently. Patents arise only after an applicant successfully navigates a cumbersome and expensive examination, while copyrights arise costlessly upon mere fixation of a work in a tangible medium of expression. Each of these vesting systems has drawn much criticism. Some scholars argue that the patent examination system imposes heavy costs while failing to eliminate invalid patents. Each of these claims, though, fails to take into account the social benefits (or costs) associated with the screening mechanism (or lack thereof) required for owners to perfect their rights. The social-welfare implications of process costs have been studied in other...