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A Numerus Clausus Principle For Intellectual Property, Christina Mulligan

Scholarly Works

Real property can only be held and conveyed in a small number of forms, such as fee simple, life estate, and lease. This principle is known as numerus clausus, meaning “the number is closed.” For centuries, the principle has been central to the common-law system of property rights. Scholars have justified it as a mechanism for facilitating effective property alienation, maintaining low transaction costs in the buying and selling of property, and keeping the scope of property owners’ rights clear.

In contrast, the numerus clausus principle is essentially nonexistent in intellectual property law. In the context of patents and copyrights, …