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Early Filing And Functional Claiming, Paul Gugliuzza

Faculty Scholarship

A major problem in the patent system is that many patents claim far more than the patentee actually invented. In his perceptive article, Ready for Patenting, Mark Lemley argues that this overclaiming is caused in part by legal doctrines that encourage inventors to file a patent application as early as possible, often before — or even instead of — building their invention. Patents issued from early-filed applications, Lemley argues, tend to be overly broad because the applicant does not yet know how the invention actually works.

This response essay, part of the Boston University Law Review’s symposium on Notice Failure …