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Intellectual Property Law Commons

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University of Michigan Law School

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Full-Text Articles in Intellectual Property Law

The "Broadest Reasonable Interpretation" And Applying Issue Preclusion To Administrative Patent Claim Construction, Jonathan I. Tietz Jan 2018

The "Broadest Reasonable Interpretation" And Applying Issue Preclusion To Administrative Patent Claim Construction, Jonathan I. Tietz

Michigan Law Review

Inventions are tangible. Yet patents comprise words, and words are imprecise. Thus, disputes over patents involve a process known as “claim construction,” which formally clarifies the meaning of a patent claim’s words and, therefore, the scope of the underlying property right. Adversarial claim construction commonly occurs in various Article III and Article I settings, such as district courts or the Patent Trial and Appeal Board (PTAB). When these proceedings ignore each other’s claim constructions, a patent’s scope can become inconsistent and unpredictable. The doctrine of issue preclusion could help with this problem. The Supreme Court recently reemphasized in B & …


Appellate Review Of Patent Claim Construction: Should The Federal Circuit Be Its Own Lexicographer In Matters Related To The Seventh Amendment, Eileen M. Herlihy Jan 2009

Appellate Review Of Patent Claim Construction: Should The Federal Circuit Be Its Own Lexicographer In Matters Related To The Seventh Amendment, Eileen M. Herlihy

Michigan Telecommunications & Technology Law Review

The Federal Circuit stated in an en banc decision in Cybor Corp. v. FAS Technologies, Inc. that the construction of patent claims is "a purely legal issue," and is therefore subject to de novo review on appeal. The Cybor decision reaffirmed the position of the majority of the Federal Circuit which had been announced in its en banc Markman decision, and proclaimed that the de novo standard of review is supported by the Supreme Court's Markman decision, a Seventh Amendment opinion. However, Cybor included strong opposition to a de novo standard of review from some of the judges of the …


Practice Makes Perfect? An Empirical Study Of Claim Construction Reversal Rates In Patent Cases, David L. Schwartz Nov 2008

Practice Makes Perfect? An Empirical Study Of Claim Construction Reversal Rates In Patent Cases, David L. Schwartz

Michigan Law Review

This Article examines whether U.S. district court judges improve their skills at patent claim construction with experience, including the experience of having their own cases reviewed by the Court of Appeals for the Federal Circuit. In theory, higher courts teach doctrine to lower courts via judicial decisions, and lower courts learn from these decisions. This Article tests the teaching-and-learning premise on the issue of claim construction in the realities of patent litigation. While others have shown that the Federal Circuit reverses a large percentage of lower court claim constructions, no one has analyzed whether judges with more claim construction appeal …


The Claim Construction Effect, Lee Petherbridge Jan 2008

The Claim Construction Effect, Lee Petherbridge

Michigan Telecommunications & Technology Law Review

Claim construction refers to the task of construing, or interpreting, the words of patents' claims to establish the metes and bounds of a patent. Theoretically, the task of claim construction serves to operationalize the concept of "invention," which lies at the heart of the U.S. patent system.[...] Rather than focusing on the set of cases in which the Federal Circuit addresses claim construction, this study focuses on a set of cases defined by a different patent doctrine. The basic idea is to explore the impact of claim construction on other areas of patent law.[...] The hypothesis of the claim construction …