Defining Patent Quality

52 Pages Posted: 10 Oct 2013 Last revised: 15 Nov 2016

See all articles by Christi J. Guerrini

Christi J. Guerrini

Baylor College of Medicine; University of Houston Law Center Intellectual Property and Information Law Institute

Date Written: April 8, 2014


Depending on whom you ask, the state of U.S. patent quality is either dismal or decent, in decline or on the upswing, in need of intervention or best left alone. Absent from the ongoing debate about the quality of U.S. patents, however, is much thoughtful discussion about what constitutes a patent’s "quality" in the first place. What features of a patent make it good in quality, what features make it bad in quality, and how are those features related? Surprisingly, scholars and policymakers have shown little interest in these questions. Yet their answers are critical to the direction of the patent agenda because they dictate how to measure patent quality and, consequently, how to evaluate the success or failure of quality reforms.

The broad aim of this Article is to draw attention to the definition of patent quality as an important subject of scholarly inquiry. Its more specific aim is to call for a return to first principles and begin the process of developing a meaning of patent quality. It does so by analyzing the concept using a methodology applied in the business literature of quality management. The implications of this work include a fundamentally different approach to patent quality’s meaning that is essentially the inverse of the conventional way of thinking about the concept. That is, instead of defining a good-quality patent as one that at a minimum satisfies the legal standards of patentability, the legal standards of patentability (among other things) should be adjusted and applied to reflect good patent quality. Following this new approach, I propose a formula for assessing patent quality and identify the most important variable in that formula: the quality "dimensions" along which patent quality rises and falls. Identifying these dimensions is the necessary first step in a process that ultimately aims to shift the focus of reform efforts from the limited goal of increasing the number of legally valid patents toward the broader goal of increasing the number of good-quality patents.

Keywords: patent quality

Suggested Citation

Guerrini, Christi J., Defining Patent Quality (April 8, 2014). 82 Fordham Law Review 3091 (2014); Chicago-Kent College of Law Research Paper No. 2013-38. Available at SSRN:

Christi J. Guerrini (Contact Author)

Baylor College of Medicine ( email )

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Apt 510
Houston, TX TX - Texas 77057
United States

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University of Houston Law Center Intellectual Property and Information Law Institute ( email )

4604 Calhoun Road
Houston, TX 77204-6060
United States

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