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Boston University School of Law

Faculty Scholarship

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Patent scope

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Full-Text Articles in Law

Patent Uncertainty: Toward A Framework With Applications, Keith N. Hylton May 2016

Patent Uncertainty: Toward A Framework With Applications, Keith N. Hylton

Faculty Scholarship

There are three essential sources of uncertainty in the patent system: perceived uncertainty due to selective sampling (“statistical artefact uncertainty”), inherent uncertainty, and strategic uncertainty. It is only the strategic uncertainty source that should be of concern to reformers. With respect to this source, uncertainty in the patent system is largely a function of two variables: the degree of inherent abstraction associated with the patent, and the degree to which the patent provides notice of its scope. The maximal degree of uncertainty is observed in the category of abstract patents with poor notice, a category dominated today by software patents. …


Patent Policy Adrift In A Sea Of Anecdote: A Reply To Lichtman, Michael J. Meurer, Craig Allen Nard Aug 2005

Patent Policy Adrift In A Sea Of Anecdote: A Reply To Lichtman, Michael J. Meurer, Craig Allen Nard

Faculty Scholarship

We enjoyed reading and thinking about Doug Lichtman's response to our article on the doctrine of equivalents (DOE), especially his eloquent formulation of the essential policy issues. Apparently, the three of us share roughly the same approach to economic analysis of the DOE. Nevertheless, Lichtman fears we have overestimated the skill of patent attorneys and lost track of the crucial role the DOE plays in augmenting patent scope and bolstering incentives to invent. We write this reply to highlight two largely empirical questions that we disagree about, and explain how these disagreements lead us to very different policy conclusions.


Invention, Refinement And Patent Claim Scope: A New Perspective On The Doctrine Of Equivalents, Michael J. Meurer, Craig Allen Nard Aug 2005

Invention, Refinement And Patent Claim Scope: A New Perspective On The Doctrine Of Equivalents, Michael J. Meurer, Craig Allen Nard

Faculty Scholarship

The doctrine of equivalents (DOE) allows courts to expand the scope of patent rights granted by the Patent Office. The doctrine has been justified on fairness grounds, but it lacks a convincing economic justification. The standard economic justification holds that certain frictions block patent applicants from literally claiming appropriately broad rights, and thus, the DOE is available at trial to expand patent scope and overcome these frictions. The friction theory suffers from three main weaknesses. First, the theory is implausible on empirical grounds. Frictions such as limits of language, mistake, and unforeseeability are missing from the leading cases. Second, there …


Invention, Refinement And Patent Claim Scope: A New Perspective On The Doctrine Of Equivalents, Michael J. Meurer Jan 2005

Invention, Refinement And Patent Claim Scope: A New Perspective On The Doctrine Of Equivalents, Michael J. Meurer

Faculty Scholarship

The doctrine of equivalents (DOE) allows courts to expand the scope of patent rights granted by the Patent Office. The doctrine has been justified on fairness grounds, but it lacks a convincing economic justification. The standard economic justification holds that certain frictions block patent applicants from literally claiming appropriately broad rights, and thus, the DOE is available at trial to expand patent scope and overcome these frictions. The friction theory suffers from three main weaknesses. First, the theory is implausible on empirical grounds. Frictions such as limits of language, mistake, and unforeseeability are missing from the leading cases. Second, there …